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How to Write the Rationale of the Study in Research (Examples)

rational in a thesis

What is the Rationale of the Study?

The rationale of the study is the justification for taking on a given study. It explains the reason the study was conducted or should be conducted. This means the study rationale should explain to the reader or examiner why the study is/was necessary. It is also sometimes called the “purpose” or “justification” of a study. While this is not difficult to grasp in itself, you might wonder how the rationale of the study is different from your research question or from the statement of the problem of your study, and how it fits into the rest of your thesis or research paper. 

The rationale of the study links the background of the study to your specific research question and justifies the need for the latter on the basis of the former. In brief, you first provide and discuss existing data on the topic, and then you tell the reader, based on the background evidence you just presented, where you identified gaps or issues and why you think it is important to address those. The problem statement, lastly, is the formulation of the specific research question you choose to investigate, following logically from your rationale, and the approach you are planning to use to do that.

Table of Contents:

How to write a rationale for a research paper , how do you justify the need for a research study.

  • Study Rationale Example: Where Does It Go In Your Paper?

The basis for writing a research rationale is preliminary data or a clear description of an observation. If you are doing basic/theoretical research, then a literature review will help you identify gaps in current knowledge. In applied/practical research, you base your rationale on an existing issue with a certain process (e.g., vaccine proof registration) or practice (e.g., patient treatment) that is well documented and needs to be addressed. By presenting the reader with earlier evidence or observations, you can (and have to) convince them that you are not just repeating what other people have already done or said and that your ideas are not coming out of thin air. 

Once you have explained where you are coming from, you should justify the need for doing additional research–this is essentially the rationale of your study. Finally, when you have convinced the reader of the purpose of your work, you can end your introduction section with the statement of the problem of your research that contains clear aims and objectives and also briefly describes (and justifies) your methodological approach. 

When is the Rationale for Research Written?

The author can present the study rationale both before and after the research is conducted. 

  • Before conducting research : The study rationale is a central component of the research proposal . It represents the plan of your work, constructed before the study is actually executed.
  • Once research has been conducted : After the study is completed, the rationale is presented in a research article or  PhD dissertation  to explain why you focused on this specific research question. When writing the study rationale for this purpose, the author should link the rationale of the research to the aims and outcomes of the study.

What to Include in the Study Rationale

Although every study rationale is different and discusses different specific elements of a study’s method or approach, there are some elements that should be included to write a good rationale. Make sure to touch on the following:

  • A summary of conclusions from your review of the relevant literature
  • What is currently unknown (gaps in knowledge)
  • Inconclusive or contested results  from previous studies on the same or similar topic
  • The necessity to improve or build on previous research, such as to improve methodology or utilize newer techniques and/or technologies

There are different types of limitations that you can use to justify the need for your study. In applied/practical research, the justification for investigating something is always that an existing process/practice has a problem or is not satisfactory. Let’s say, for example, that people in a certain country/city/community commonly complain about hospital care on weekends (not enough staff, not enough attention, no decisions being made), but you looked into it and realized that nobody ever investigated whether these perceived problems are actually based on objective shortages/non-availabilities of care or whether the lower numbers of patients who are treated during weekends are commensurate with the provided services.

In this case, “lack of data” is your justification for digging deeper into the problem. Or, if it is obvious that there is a shortage of staff and provided services on weekends, you could decide to investigate which of the usual procedures are skipped during weekends as a result and what the negative consequences are. 

In basic/theoretical research, lack of knowledge is of course a common and accepted justification for additional research—but make sure that it is not your only motivation. “Nobody has ever done this” is only a convincing reason for a study if you explain to the reader why you think we should know more about this specific phenomenon. If there is earlier research but you think it has limitations, then those can usually be classified into “methodological”, “contextual”, and “conceptual” limitations. To identify such limitations, you can ask specific questions and let those questions guide you when you explain to the reader why your study was necessary:

Methodological limitations

  • Did earlier studies try but failed to measure/identify a specific phenomenon?
  • Was earlier research based on incorrect conceptualizations of variables?
  • Were earlier studies based on questionable operationalizations of key concepts?
  • Did earlier studies use questionable or inappropriate research designs?

Contextual limitations

  • Have recent changes in the studied problem made previous studies irrelevant?
  • Are you studying a new/particular context that previous findings do not apply to?

Conceptual limitations

  • Do previous findings only make sense within a specific framework or ideology?

Study Rationale Examples

Let’s look at an example from one of our earlier articles on the statement of the problem to clarify how your rationale fits into your introduction section. This is a very short introduction for a practical research study on the challenges of online learning. Your introduction might be much longer (especially the context/background section), and this example does not contain any sources (which you will have to provide for all claims you make and all earlier studies you cite)—but please pay attention to how the background presentation , rationale, and problem statement blend into each other in a logical way so that the reader can follow and has no reason to question your motivation or the foundation of your research.

Background presentation

Since the beginning of the Covid pandemic, most educational institutions around the world have transitioned to a fully online study model, at least during peak times of infections and social distancing measures. This transition has not been easy and even two years into the pandemic, problems with online teaching and studying persist (reference needed) . 

While the increasing gap between those with access to technology and equipment and those without access has been determined to be one of the main challenges (reference needed) , others claim that online learning offers more opportunities for many students by breaking down barriers of location and distance (reference needed) .  

Rationale of the study

Since teachers and students cannot wait for circumstances to go back to normal, the measures that schools and universities have implemented during the last two years, their advantages and disadvantages, and the impact of those measures on students’ progress, satisfaction, and well-being need to be understood so that improvements can be made and demographics that have been left behind can receive the support they need as soon as possible.

Statement of the problem

To identify what changes in the learning environment were considered the most challenging and how those changes relate to a variety of student outcome measures, we conducted surveys and interviews among teachers and students at ten institutions of higher education in four different major cities, two in the US (New York and Chicago), one in South Korea (Seoul), and one in the UK (London). Responses were analyzed with a focus on different student demographics and how they might have been affected differently by the current situation.

How long is a study rationale?

In a research article bound for journal publication, your rationale should not be longer than a few sentences (no longer than one brief paragraph). A  dissertation or thesis  usually allows for a longer description; depending on the length and nature of your document, this could be up to a couple of paragraphs in length. A completely novel or unconventional approach might warrant a longer and more detailed justification than an approach that slightly deviates from well-established methods and approaches.

Consider Using Professional Academic Editing Services

Now that you know how to write the rationale of the study for a research proposal or paper, you should make use of Wordvice AI’s free AI Grammar Checker , or receive professional academic proofreading services from Wordvice, including research paper editing services and manuscript editing services to polish your submitted research documents.

You can also find many more articles, for example on writing the other parts of your research paper , on choosing a title , or on making sure you understand and adhere to the author instructions before you submit to a journal, on the Wordvice academic resources pages.

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How do you Write the Rationale for Research?

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  • By DiscoverPhDs
  • October 21, 2020

Rationale for Research

What is the Rationale of Research?

The term rationale of research means the reason for performing the research study in question. In writing your rational you should able to convey why there was a need for your study to be carried out. It’s an important part of your research paper that should explain how your research was novel and explain why it was significant; this helps the reader understand why your research question needed to be addressed in your research paper, term paper or other research report.

The rationale for research is also sometimes referred to as the justification for the study. When writing your rational, first begin by introducing and explaining what other researchers have published on within your research field.

Having explained the work of previous literature and prior research, include discussion about where the gaps in knowledge are in your field. Use these to define potential research questions that need answering and explain the importance of addressing these unanswered questions.

The rationale conveys to the reader of your publication exactly why your research topic was needed and why it was significant . Having defined your research rationale, you would then go on to define your hypothesis and your research objectives.

Final Comments

Defining the rationale research, is a key part of the research process and academic writing in any research project. You use this in your research paper to firstly explain the research problem within your dissertation topic. This gives you the research justification you need to define your research question and what the expected outcomes may be.

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How to Write the Rationale for a Research Paper

  • Research Process
  • Peer Review

A research rationale answers the big SO WHAT? that every adviser, peer reviewer, and editor has in mind when they critique your work. A compelling research rationale increases the chances of your paper being published or your grant proposal being funded. In this article, we look at the purpose of a research rationale, its components and key characteristics, and how to create an effective research rationale.

Updated on September 19, 2022

a researcher writing the rationale for a research paper

The rationale for your research is the reason why you decided to conduct the study in the first place. The motivation for asking the question. The knowledge gap. This is often the most significant part of your publication. It justifies the study's purpose, novelty, and significance for science or society. It's a critical part of standard research articles as well as funding proposals.

Essentially, the research rationale answers the big SO WHAT? that every (good) adviser, peer reviewer, and editor has in mind when they critique your work.

A compelling research rationale increases the chances of your paper being published or your grant proposal being funded. In this article, we look at:

  • the purpose of a research rationale
  • its components and key characteristics
  • how to create an effective research rationale

What is a research rationale?

Think of a research rationale as a set of reasons that explain why a study is necessary and important based on its background. It's also known as the justification of the study, rationale, or thesis statement.

Essentially, you want to convince your reader that you're not reciting what other people have already said and that your opinion hasn't appeared out of thin air. You've done the background reading and identified a knowledge gap that this rationale now explains.

A research rationale is usually written toward the end of the introduction. You'll see this section clearly in high-impact-factor international journals like Nature and Science. At the end of the introduction there's always a phrase that begins with something like, "here we show..." or "in this paper we show..." This text is part of a logical sequence of information, typically (but not necessarily) provided in this order:

the order of the introduction to a research paper

Here's an example from a study by Cataldo et al. (2021) on the impact of social media on teenagers' lives.

an example of an introduction to a research paper

Note how the research background, gap, rationale, and objectives logically blend into each other.

The authors chose to put the research aims before the rationale. This is not a problem though. They still achieve a logical sequence. This helps the reader follow their thinking and convinces them about their research's foundation.

Elements of a research rationale

We saw that the research rationale follows logically from the research background and literature review/observation and leads into your study's aims and objectives.

This might sound somewhat abstract. A helpful way to formulate a research rationale is to answer the question, “Why is this study necessary and important?”

Generally, that something has never been done before should not be your only motivation. Use it only If you can give the reader valid evidence why we should learn more about this specific phenomenon.

A well-written introduction covers three key elements:

  • What's the background to the research?
  • What has been done before (information relevant to this particular study, but NOT a literature review)?
  • Research rationale

Now, let's see how you might answer the question.

1. This study complements scientific knowledge and understanding

Discuss the shortcomings of previous studies and explain how'll correct them. Your short review can identify:

  • Methodological limitations . The methodology (research design, research approach or sampling) employed in previous works is somewhat flawed.

Example : Here , the authors claim that previous studies have failed to explore the role of apathy “as a predictor of functional decline in healthy older adults” (Burhan et al., 2021). At the same time, we know a lot about other age-related neuropsychiatric disorders, like depression.

Their study is necessary, then, “to increase our understanding of the cognitive, clinical, and neural correlates of apathy and deconstruct its underlying mechanisms.” (Burhan et al., 2021).

  • Contextual limitations . External factors have changed and this has minimized or removed the relevance of previous research.

Example : You want to do an empirical study to evaluate the effects of the COVID-19 pandemic on the number of tourists visiting Sicily. Previous studies might have measured tourism determinants in Sicily, but they preceded COVID-19.

  • Conceptual limitations . Previous studies are too bound to a specific ideology or a theoretical framework.

Example : The work of English novelist E. M. Forster has been extensively researched for its social, political, and aesthetic dimensions. After the 1990s, younger scholars wanted to read his novels as an example of gay fiction. They justified the need to do so based on previous studies' reliance on homophobic ideology.

This kind of rationale is most common in basic/theoretical research.

2. This study can help solve a specific problem

Here, you base your rationale on a process that has a problem or is not satisfactory.

For example, patients complain about low-quality hospital care on weekends (staff shortages, inadequate attention, etc.). No one has looked into this (there is a lack of data). So, you explore if the reported problems are true and what can be done to address them. This is a knowledge gap.

Or you set out to explore a specific practice. You might want to study the pros and cons of several entry strategies into the Japanese food market.

It's vital to explain the problem in detail and stress the practical benefits of its solution. In the first example, the practical implications are recommendations to improve healthcare provision.

In the second example, the impact of your research is to inform the decision-making of businesses wanting to enter the Japanese food market.

This kind of rationale is more common in applied/practical research.

3. You're the best person to conduct this study

It's a bonus if you can show that you're uniquely positioned to deliver this study, especially if you're writing a funding proposal .

For an anthropologist wanting to explore gender norms in Ethiopia, this could be that they speak Amharic (Ethiopia's official language) and have already lived in the country for a few years (ethnographic experience).

Or if you want to conduct an interdisciplinary research project, consider partnering up with collaborators whose expertise complements your own. Scientists from different fields might bring different skills and a fresh perspective or have access to the latest tech and equipment. Teaming up with reputable collaborators justifies the need for a study by increasing its credibility and likely impact.

When is the research rationale written?

You can write your research rationale before, or after, conducting the study.

In the first case, when you might have a new research idea, and you're applying for funding to implement it.

Or you're preparing a call for papers for a journal special issue or a conference. Here , for instance, the authors seek to collect studies on the impact of apathy on age-related neuropsychiatric disorders.

In the second case, you have completed the study and are writing a research paper for publication. Looking back, you explain why you did the study in question and how it worked out.

Although the research rationale is part of the introduction, it's best to write it at the end. Stand back from your study and look at it in the big picture. At this point, it's easier to convince your reader why your study was both necessary and important.

How long should a research rationale be?

The length of the research rationale is not fixed. Ideally, this will be determined by the guidelines (of your journal, sponsor etc.).

The prestigious journal Nature , for instance, calls for articles to be no more than 6 or 8 pages, depending on the content. The introduction should be around 200 words, and, as mentioned, two to three sentences serve as a brief account of the background and rationale of the study, and come at the end of the introduction.

If you're not provided guidelines, consider these factors:

  • Research document : In a thesis or book-length study, the research rationale will be longer than in a journal article. For example, the background and rationale of this book exploring the collective memory of World War I cover more than ten pages.
  • Research question : Research into a new sub-field may call for a longer or more detailed justification than a study that plugs a gap in literature.

Which verb tenses to use in the research rationale?

It's best to use the present tense. Though in a research proposal, the research rationale is likely written in the future tense, as you're describing the intended or expected outcomes of the research project (the gaps it will fill, the problems it will solve).

Example of a research rationale

Research question : What are the teachers' perceptions of how a sense of European identity is developed and what underlies such perceptions?

an example of a research rationale

Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology , 3(2), 77-101.

Burhan, A.M., Yang, J., & Inagawa, T. (2021). Impact of apathy on aging and age-related neuropsychiatric disorders. Research Topic. Frontiers in Psychiatry

Cataldo, I., Lepri, B., Neoh, M. J. Y., & Esposito, G. (2021). Social media usage and development of psychiatric disorders in childhood and adolescence: A review. Frontiers in Psychiatry , 11.

CiCe Jean Monnet Network (2017). Guidelines for citizenship education in school: Identities and European citizenship children's identity and citizenship in Europe.

Cohen, l, Manion, L., & Morrison, K. (2018). Research methods in education . Eighth edition. London: Routledge.

de Prat, R. C. (2013). Euroscepticism, Europhobia and Eurocriticism: The radical parties of the right and left “vis-à-vis” the European Union P.I.E-Peter Lang S.A., Éditions Scientifiques Internationales.

European Commission. (2017). Eurydice Brief: Citizenship education at school in Europe.

Polyakova, A., & Fligstein, N. (2016). Is European integration causing Europe to become more nationalist? Evidence from the 2007–9 financial crisis. Journal of European Public Policy , 23(1), 60-83.

Winter, J. (2014). Sites of Memory, Sites of Mourning: The Great War in European Cultural History . Cambridge: Cambridge University Press.

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Setting Rationale in Research: Cracking the code for excelling at research

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Knowledge and curiosity lays the foundation of scientific progress. The quest for knowledge has always been a timeless endeavor. Scholars seek reasons to explain the phenomena they observe, paving way for development of research. Every investigation should offer clarity and a well-defined rationale in research is a cornerstone upon which the entire study can be built.

Research rationale is the heartbeat of every academic pursuit as it guides the researchers to unlock the untouched areas of their field. Additionally, it illuminates the gaps in the existing knowledge, and identifies the potential contributions that the study aims to make.

Table of Contents

What Is Research Rationale and When Is It Written

Research rationale is the “why” behind every academic research. It not only frames the study but also outlines its objectives , questions, and expected outcomes. Additionally, it helps to identify the potential limitations of the study . It serves as a lighthouse for researchers that guides through data collection and analysis, ensuring their efforts remain focused and purposeful. Typically, a rationale is written at the beginning of the research proposal or research paper . It is an essential component of the introduction section and provides the foundation for the entire study. Furthermore, it provides a clear understanding of the purpose and significance of the research to the readers before delving into the specific details of the study. In some cases, the rationale is written before the methodology, data analysis, and other sections. Also, it serves as the justification for the research, and how it contributes to the field. Defining a research rationale can help a researcher in following ways:

Define Your Research Rationale

1. Justification of a Research Problem

  • Research rationale helps to understand the essence of a research problem.
  • It designs the right approach to solve a problem. This aspect is particularly important for applied research, where the outcomes can have real-world relevance and impact.
  • Also, it explains why the study is worth conducting and why resources should be allocated to pursue it.
  • Additionally, it guides a researcher to highlight the benefits and implications of a strategy.

2. Elimination of Literature Gap

  • Research rationale helps to ideate new topics which are less addressed.
  • Additionally, it offers fresh perspectives on existing research and discusses the shortcomings in previous studies.
  • It shows that your study aims to contribute to filling these gaps and advancing the field’s understanding.

3. Originality and Novelty

  • The rationale highlights the unique aspects of your research and how it differs from previous studies.
  • Furthermore, it explains why your research adds something new to the field and how it expands upon existing knowledge.
  • It highlights how your findings might contribute to a better understanding of a particular issue or problem and potentially lead to positive changes.
  • Besides these benefits, it provides a personal motivation to the researchers. In some cases, researchers might have personal experiences or interests that drive their desire to investigate a particular topic.

4. An Increase in Chances of Funding

  • It is essential to convince funding agencies , supervisors, or reviewers, that a research is worth pursuing.
  • Therefore, a good rationale can get your research approved for funding and increases your chances of getting published in journals; as it addresses the potential knowledge gap in existing research.

Overall, research rationale is essential for providing a clear and convincing argument for the value and importance of your research study, setting the stage for the rest of the research proposal or manuscript. Furthermore, it helps establish the context for your work and enables others to understand the purpose and potential impact of your research.

5 Key Elements of a Research Rationale

Research rationale must include certain components which make it more impactful. Here are the key elements of a research rationale:

Elements of research rationale

By incorporating these elements, you provide a strong and convincing case for the legitimacy of your research, which is essential for gaining support and approval from academic institutions, funding agencies, or other stakeholders.

How to Write a Rationale in Research

Writing a rationale requires careful consideration of the reasons for conducting the study. It is usually written in the present tense.

Here are some steps to guide you through the process of writing a research rationale:

Steps to write a research rationale

After writing the initial draft, it is essential to review and revise the research rationale to ensure that it effectively communicates the purpose of your research. The research rationale should be persuasive and compelling, convincing readers that your study is worthwhile and deserves their attention.

How Long Should a Research Rationale be?

Although there is no pre-defined length for a rationale in research, its length may vary depending on the specific requirements of the research project. It also depends on the academic institution or organization, and the guidelines set by the research advisor or funding agency. In general, a research rationale is usually a concise and focused document.

Typically, it ranges from a few paragraphs to a few pages, but it is usually recommended to keep it as crisp as possible while ensuring all the essential elements are adequately covered. The length of a research rationale can be roughly as follows:

1. For Research Proposal:

A. Around 1 to 3 pages

B. Ensure clear and comprehensive explanation of the research question, its significance, literature review , and methodological approach.

2. Thesis or Dissertation:

A. Around 3 to 5 pages

B. Ensure an extensive coverage of the literature review, theoretical framework, and research objectives to provide a robust justification for the study.

3. Journal Article:

A. Usually concise. Ranges from few paragraphs to one page

B. The research rationale is typically included as part of the introduction section

However, remember that the quality and content of the research rationale are more important than its length. The reasons for conducting the research should be well-structured, clear, and persuasive when presented. Always adhere to the specific institution or publication guidelines.

Example of a Research Rationale

Example of a research rationale

In conclusion, the research rationale serves as the cornerstone of a well-designed and successful research project. It ensures that research efforts are focused, meaningful, and ethically sound. Additionally, it provides a comprehensive and logical justification for embarking on a specific investigation. Therefore, by identifying research gaps, defining clear objectives, emphasizing significance, explaining the chosen methodology, addressing ethical considerations, and recognizing potential limitations, researchers can lay the groundwork for impactful and valuable contributions to the scientific community.

So, are you ready to delve deeper into the world of research and hone your academic writing skills? Explore Enago Academy ‘s comprehensive resources and courses to elevate your research and make a lasting impact in your field. Also, share your thoughts and experiences in the form of an article or a thought piece on Enago Academy’s Open Platform .

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Frequently Asked Questions

A rationale of the study can be written by including the following points: 1. Background of the Research/ Study 2. Identifying the Knowledge Gap 3. An Overview of the Goals and Objectives of the Study 4. Methodology and its Significance 5. Relevance of the Research

Start writing a research rationale by defining the research problem and discussing the literature gap associated with it.

A research rationale can be ended by discussing the expected results and summarizing the need of the study.

A rationale for thesis can be made by covering the following points: 1. Extensive coverage of the existing literature 2. Explaining the knowledge gap 3. Provide the framework and objectives of the study 4. Provide a robust justification for the study/ research 5. Highlight the potential of the research and the expected outcomes

A rationale for dissertation can be made by covering the following points: 1. Highlight the existing reference 2. Bridge the gap and establish the context of your research 3. Describe the problem and the objectives 4. Give an overview of the methodology

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How to Write a Rationale: A Guide for Research and Beyond

How to Write a Rationale: A Guide for Research and Beyond

Ever found yourself scratching your head, wondering how to justify your choice of a research topic or project? You’re not alone! Writing a rationale, which essentially means explaining the ‘why’ behind your decisions, is crucial to any research process. It’s like the secret sauce that adds flavour to your research recipe. So, the only thing you need to know is how to write a rationale.

Guide

What is a Rationale?

A rationale in research is essentially the foundation of your study. It serves as the justification for undertaking a particular research project. At its core, the rationale explains why the research was conducted or needs to be conducted, thus addressing a specific knowledge gap or research question.

Here’s a breakdown of the key elements involved in crafting a rationale:

Linking Background to Research Question: 

The rationale should connect the background of the study to your specific research question. It involves presenting and discussing existing data on your topic, identifying gaps or issues in the current understanding, and explaining why addressing them is important​.

Objectives and Significance: 

Your rationale should clearly outline your research objectives – what you hope to discover or achieve through the study. It should also emphasize the subject’s significance in your field and explain why more or better research is needed​.

Methodological Approach: 

The rationale should briefly describe your proposed research method , whether qualitative (descriptive) or quantitative (experimental), and justify this choice​.

Justifying the Need for Research: 

The rationale isn’t just about what you’re doing and why it’s necessary. It can involve highlighting methodological, contextual, or conceptual limitations in previous studies and explaining how your research aims to overcome these limitations. Essentially, you’re making a case for why your research fills a crucial gap in existing knowledge​​.

Presenting Before and After Research: 

Interestingly, the rationale can be presented before and after the research. Before the research, it forms a central part of the research proposal, setting out the plan for the work. After the research, it’s presented in a research article or dissertation to explain the focus on a specific research question and link it to the study’s aims and outcomes​.

Elements to Include: 

A good rationale should include a summary of conclusions from your literature review, identify what is currently unknown, discuss inconclusive or contested results from previous studies, and emphasize the necessity to improve or build on previous research​.

Creating a rationale is a vital part of the research process, as it not only sets the stage for your study but also convinces readers of the value and necessity of your work.

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How to Write a Rationale:

Writing a rationale for your research is crucial in conducting and presenting your study. It involves explaining why your research is necessary and important. Here’s a guide to help you craft a compelling rationale:

Identify the Problem or Knowledge Gap: 

Begin by clearly stating the issue or gap in knowledge that your research aims to address. Explain why this problem is important and merits investigation. It is the foundation of your rationale and sets the stage for the need for your research.​

Review the Literature: 

Conduct a thorough review of existing literature on your topic. It helps you understand what research has already been done and what gaps or open questions exist. Your rationale should build on this background by highlighting these gaps and emphasizing the importance of addressing them​​​​.

Define Your Research Questions/Hypotheses: 

Based on your understanding of the problem and literature review, clearly state the research questions or hypotheses that your study aims to explore. These should logically stem from the identified gaps or issues.

Explain Your Research Approach: 

Describe the methods you will use for your research, including data collection and analysis techniques. Justify why these methods are appropriate for addressing your research questions or hypotheses​​.

Discuss the Potential Impact of Your Research:  Explain the significance of your study. Consider both theoretical contributions and practical implications. For instance, how does your research advance existing knowledge? Does it have real-world applications? Is it relevant to a specific field or community?​

Consider Ethical Considerations: 

If your research involves human or animal subjects, discuss the ethical aspects and how you plan to conduct your study responsibly​.

Contextualise Your Study: 

Justify the relevance of your research by explaining how it fits into the broader context. Connect your study to current trends, societal needs, or academic discussions​​.

Support with Evidence: 

Provide evidence or examples that underscore the need for your research. It could include citing relevant studies, statistics, or scenarios that illustrate the problem or gap your research addresses​.

Methodological, Contextual, and Conceptual Limitations: 

Address any limitations of previous research and how your study aims to overcome them. It can include methodological flaws in previous studies, changes in external factors that make past research less relevant, or the need to study a phenomenon within a new conceptual framework​.

Placement in Your Paper: 

Typically, the rationale is written toward the end of the introduction section of your paper, providing a logical lead-in to your research questions and methodology​​.

By following these steps and considering your audience’s perspective, you can write a strong and compelling rationale that clearly communicates the significance and necessity of your research project.

Frequently Asked Questions:

What makes a good research rationale.

A good rationale clearly identifies a gap in existing knowledge, builds on previous research, and outlines why your study is necessary and significant.

How detailed should my literature review be in the rationale?

Your literature review should be comprehensive enough to highlight the gaps your research aims to fill, but it should not overshadow the rationale itself.

Conclusion: 

A well-crafted rationale is your ticket to making your research stand out. It’s about bridging gaps, challenging norms, and paving the way for new discoveries. So go ahead, make your rationale the cornerstone of your research narrative!

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rational in a thesis

How to Write a Rationale for Your Research Paper

Learn how to write a compelling research rationale. Discover key elements, steps, and tips to justify your study and strengthen your academic paper.

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Jun 25, 2024

How to Write a Rationale for Your Research Paper

A research rationale is a crucial component of any academic paper, serving as a concise explanation of why your research project is necessary and valuable.

It justifies the importance of your study and outlines its potential contributions to the field, effectively bridging the gap between your research question and the existing body of knowledge.

In academic writing , the rationale plays a vital role by providing context for your research and helping readers understand its relevance and significance. It demonstrates that you've identified a meaningful gap or problem in the current literature, justifying the time, effort, and resources required for your study.

A well-crafted rationale helps convince readers - whether they're supervisors, peers, or funding bodies - of the merit of your research. In other words, writing the rationale for research is essential. In other words, writing the rationale for research is essential.

Moreover, it sets the stage for your methodology and expected outcomes, strengthening the overall structure and coherence of your research paper.

By clearly articulating the purpose and value of your study, a strong rationale for a research paper lays the foundation for a compelling and impactful research article.

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Purpose of a Rationale

The purpose of a research rationale is to justify your study and explain its contributions to your research proposal.

Essentially, the rationale for a research paper should clarify these points. Justifying the need involves answering "Why does this study matter?" Highlight the problem's significance and why current knowledge is insufficient, emphasizing this in your rationale for a research paper.

Point out gaps, contradictions, or new developments in existing research in your rationale for research.

Explaining contributions demonstrates your work's value and the impact of your research in your dissertation.

This may include new methods, challenging theories, providing evidence, or exploring overlooked aspects of your research topic. A clear rationale shows your research is the reason it is necessary and valuable to the field.

It convinces readers that your work advances collective knowledge in meaningful ways by highlighting the impact of your research.

Elements of an Effective Rationale

An effective research rationale has three key elements: clear justification, relevance to the research topic, and supporting evidence.

  • Clear problem statement: Identify the specific issue or gap your research addresses. State the problem concisely and explain why it matters, emphasizing the rationale of your research .
  • Relevance to existing literature: Show how your work fits into current knowledge. Highlight connections to previous studies and explain what's missing or needs further exploration, particularly when writing the rationale for the research.
  • Potential impact of the research: Describe the expected outcomes and their significance. Explain how your findings could advance theory, improve practice, or benefit society, providing a strong justification for your research. This is crucial when conducting research.

Steps to write a rationale:

Identify the research problem:.

  • Pinpoint the specific issue or question your study addresses in the rationale of your research.
  • Ensure it's clear, focused, and significant to your specific research field.

Review relevant literature:

  • Examine current research related to your topic.
  • Identify gaps, contradictions, or areas needing further study in the rationale of the study.

Articulate the significance of your study:

  • Explain why your research matters, stating the rationale of your research.
  • Highlight potential contributions to theory or practice.

Explain your unique approach or perspective:

  • Describe how your method or viewpoint differs from previous research when writing a research article.
  • Show how your approach adds value to the field in your research topic proposal and conducting the study.

Tips for Crafting a Compelling Rationale:

Be concise and focused:.

  • Use clear, direct language.
  • Stick to essential information.
  • Avoid unnecessary jargon or repetition.

Use evidence to support your claims:

  • Cite relevant studies or statistics in your dissertation .
  • Provide concrete examples when possible.
  • Show how evidence links to your arguments within the context of conducting research.

Address potential counterarguments:

  • Anticipate possible objections to your research while writing the rationale for the research.
  • Acknowledge the limitations of your approach in your thesis.
  • Explain why your study is still valuable despite these challenges.

Conclusion 

A well-written rationale for a research paper is crucial for a strong research paper, justifying your study's need, explaining its contribution, and setting the stage for your work. Remember to clearly state your research problem, show relevance to existing literature, and highlight potential impact. Be concise and focused, use evidence to support claims, and address counterarguments.

Avoid common pitfalls like vagueness, disconnection from prior research, and overstatement. A solid rationale strengthens your paper by providing context for your study, demonstrating its significance and originality, and convincing readers of its value and necessity. Writing the rationale for research is key in this process. Ultimately, a compelling rationale lays the foundation for a persuasive and impactful research paper, enhancing its credibility and relevance in your field of study as part of your research proposal.

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Rationale for Research: Writing Tips & Examples

The rationale for research justifies the need for a study and its potential contributions. It highlights gaps in existing knowledge and aims to fill those gaps. A well-crafted rationale increases the chances of publication success and funding approval. The rationale typically follows a logical sequence from literature review to research objectives. Its length varies based on the type of research document, ranging from a few sentences to several pages .

rational in a thesis

📘 Guidelines for Writing the Rationale for Research

📏 length.

  • Scope : The length of the rationale can vary depending on the overall length of the research proposal or paper .
  • Detail : Typically, the rationale should be concise and focused, ranging from a few sentences to a page or two(typically 4-10 sentences ).
  • Purpose : Aim to provide enough detail to justify the importance and relevance of the study without being overly lengthy or repetitive.

📍 Position

  • Placement : The rationale is usually positioned early in the research proposal or paper, often following the introduction or background section.
  • Sequence : It should come after the research question or hypothesis has been clearly stated, as the rationale aims to justify why the research question is important and worth investigating.
  • Integration : In some cases, the rationale may be integrated into the introduction or background section, rather than being a separate section.

🔗 Transition Words

  • Function : Transition words help to connect ideas and create a logical flow in the rationale.
  • Contrast/Gaps : “However,” “Despite,” “While,” “Although”
  • Logical Connection : “Therefore,” “Thus,” “Consequently,” “As a result”
  • Addition of Points : “Moreover,” “Furthermore,” “In addition”
  • Purposeful Action : “To address this gap,” “To fill this need,” “To bridge this gap”

📝 Example of a Well-Drafted Rationale

  • “Despite the growing prevalence of obesity among children, current interventions have shown limited long-term effectiveness. [Transition: However,] recent studies suggest that family-based interventions targeting both diet and physical activity may be more promising. [Transition: Therefore,] the proposed study aims to investigate the effectiveness of a novel family-based intervention program for treating childhood obesity, which combines nutrition education, physical activity promotion, and parent-child bonding activities. [Transition: Moreover,] the study will assess the long-term maintenance of weight loss and lifestyle changes, which has been a major challenge in previous interventions. [Transition: To address this gap,] the findings of this study could inform the development of more effective and sustainable interventions for childhood obesity, ultimately improving the health and well-being of children and their families.”

In this example, the rationale is concise (one paragraph), positioned after the background information on childhood obesity, and uses transition words ( however, therefore, moreover, to address this gap ) to create a logical flow and connection between ideas.

Rationale for Research Practices: Good vs. Bad

🎯 “While previous studies have investigated the effects of social media on adolescent mental health, few have examined the specific role of Instagram use in this relationship.”❓ “Social media is a popular topic, and many studies have been conducted on it. This study will investigate social media use among adolescents.”
🌟 “Understanding the impact of Instagram use on adolescent mental health is crucial, as it can inform the development of interventions and guidelines for healthy social media use among this vulnerable population.”⭕ “This study will investigate the relationship between Instagram use and adolescent mental health.”
🔍 “A mixed-methods approach, combining a large-scale survey with in-depth interviews, will provide a comprehensive understanding of both the prevalence and the lived experiences of Instagram use and mental health among adolescents.”🧐 “This study will use a survey to collect data from adolescents.”
💡 “The findings of this study may have important implications for parents, educators, and mental health professionals in terms of promoting healthy social media habits and identifying adolescents at risk for mental health problems.”➡️ “This study will contribute to the existing literature on social media and adolescent mental health.”
✅ “The proposed study is feasible, as the researchers have established partnerships with local schools and have experience conducting research with adolescent populations. The study timeline and budget are realistic and aligned with the research objectives.”❌ “This study will recruit a large sample of adolescents from across the country and conduct extensive assessments over a five-year period.”
🌍 “The proposed study aligns with the national priorities for adolescent mental health research and the growing concern about the impact of social media on youth well-being. The findings will contribute to the development of evidence-based guidelines for healthy social media use.”🔗 “This study will investigate the relationship between Instagram use and adolescent mental health, which is an interesting topic.”
📝 “The proposed study aims to investigate the relationship between Instagram use and adolescent mental health, using a mixed-methods approach to provide a comprehensive understanding of this important issue.”🌀 “The proposed study aims to elucidate the multifaceted relationship between the utilization of the Instagram platform and the psychological well-being of adolescent populations, employing a mixed-methods approach to provide a comprehensive understanding of this important issue.”

Rationale for Research-Good Research Practices Across Disciplines

🧬 Despite advancements in cancer treatment, pancreatic cancer remains one of the deadliest cancers with poor prognosis. This study aims to investigate the potential of a novel immunotherapy approach targeting specific genetic mutations found in pancreatic cancer cells, which could lead to the development of more effective and targeted treatments for this aggressive cancer.
📚 While previous studies have examined the representation of women in Victorian literature, few have focused on the portrayal of women in the works of lesser-known female authors of the period. This study aims to analyze the works of three understudied Victorian female writers to provide a more comprehensive understanding of women’s experiences and perspectives during this time, contributing to the ongoing discourse on gender and literature.
🔧 Current surgical techniques for repairing rotator cuff tears have limitations, including high re-tear rates and prolonged recovery times. This study proposes to evaluate the effectiveness of a novel surgical technique using a biodegradable scaffold to enhance tendon healing and improve patient outcomes. The findings could lead to the development of a more reliable and efficient surgical approach for treating rotator cuff injuries.
🦷 Dental anxiety is a common problem that can lead to avoidance of dental care and poor oral health outcomes. While previous studies have investigated the effectiveness of various interventions for reducing dental anxiety, few have focused on the use of virtual reality (VR) technology. This study aims to assess the feasibility and efficacy of a VR-based relaxation technique for reducing dental anxiety in patients undergoing dental procedures, which could provide a non-invasive and accessible tool for improving patient experiences and outcomes.
🔋 The development of high-performance, eco-friendly battery materials is crucial for meeting the growing demand for sustainable energy storage solutions. This study proposes to investigate the synthesis and characterization of a novel cathode material based on abundant and non-toxic elements, which could lead to the development of safer, more affordable, and longer-lasting batteries for various applications, from consumer electronics to electric vehicles.

Let’s go deeper into writing a good research rationale. You’ll learn the structure, important parts, and ways to make a strong point. This guide helps both seasoned researchers and beginners. You’ll learn to make your research matter and interest your readers with its significance .

What is a Rationale for Research?

knowledge gap the study wants to fill and its possible contribution to literature .

Overview of the Research Rationale

A solid research rationale starts with careful literature review analysis. This step identifies areas where the knowledge base is incomplete. It makes sure the new research does something novel. 1 The rationale sums up key points from previous studies. It talks about what we’re still not sure about or which results are mixed. It shows how the new study will add to what’s already known.

Significance and Novelty of Research

The research rationale underlines the study’s significance and novelty . It should explain the practical and theoretical benefits the study offers. 2 Take, for example, Cataldo et al.’s (2021) research on social media and teens. This study might discuss its real-world impacts and its input to theories about teen and tech use. 2

Rationales can also show a study’s practical benefits .Like, Burhan et al. (2021) could explain how their study on apathy aids with new elderly care interventions .

When is the Rationale for Research Written?

The rationale for research is key at different times in research. It’s crucial early on or after a study ends. At each point, it has a specific role.

Before the Research: Research Proposal

Before starting a research project, the rationale for research is vital. It’s a big part of the research proposal . Here, the rationale lays out the study’s plan, goals, and significance .

After the Research: Research Paper or Dissertation

After the study is over, the rationale for research goes in the final research paper or dissertation . It explains why the research focused on certain aims and how the results fit the bigger picture.

It doesn’t matter if it’s early or late, the rationale for research is crucial. It shows why the study matters, making readers see its worth for the field.

Basis for Writing the Research Rationale

Creating a strong research rationale starts with a detailed literature review . This means deeply looking into past studies. It helps you spot where there’s not enough information in the current knowledge about your topic.By carefully checking what’s already known, a literature review ensures your study will add something new. It won’t just repeat what others have done before. 1

Literature Review

A thorough literature review is key to solid research reasoning. It lets you pull together the main points from studies that have gone before. This way, you really understand what is known about your study area. 1 This stop you from covering old ground but also shows what needs more looking into. This sets up your research to bring a fresh perspective. 3

Identifying Gaps in Knowledge

Finding where there is still knowledge to be found is one big goal of the literature review . These gaps might be due to different or unclear findings, study restrictions, or lack of research for certain groups. 1 By recognizing these knowledge gaps , your study becomes important. It tries to answer key questions and push the field forward. 3

Avoiding Duplication

Another goal is to make sure you’re not just repeating what’s already known. The literature review is crucial in this. It shows you what’s been done already and lets you check your approach to be unique. 1 This step helps avoid doing work that’s already been covered. It opens the door for new ideas, building on existing knowledge.

Length of the Research Rationale

The length of the research rationale in a research proposal or article is typically a few sentences 1 . But for a thesis or dissertation , it could be a couple of paragraphs.

How long the research rationale length is can change. It depends on the field or how new and unusual the idea is 1 . A very new idea might need more explaining than something continuing existing research 2 .

The prestigious journal Nature specifies that articles should ideally be no more than 6 to 8 pages long, with the introduction being around 200 words including a brief account of the background and rationale of the study.

In some cases like a thesis or a lengthy book study, the research rationale can be quite long. It might even be more than ten pages, depending on the details.

Type of PublicationTypical Length of Research Rationale
Journal ArticleA few sentences
Thesis/DissertationA couple of paragraphs
Novel/Unconventional ResearchMore detailed justification

The length of the research rationale is often set by the journal or sponsor’s rules 2 .

Basic Elements of the Research Rationale

A well-crafted research rationale sets the stage for a successful study. It justifies the investigation with solid reasons. This reason should show the importance and originality of the work you want to do.

Literature Review Conclusions

It’s critical to summarize what’s already known in your field. This summary helps put your study in context. It also helps you see what needs to be researched further, known as research gaps and knowledge gaps .

Knowledge Gaps

Looking at past studies should show where we need more information. These areas without enough data give a good reason to continue researching. By finding and talking about these knowledge gaps , you can make sure your study brings something new.

Controversial or Inconclusive Findings

Sometimes, past research doesn’t give clear answers. It might even have different or uncertain results. In these cases, your study could help by clarifying or solving these issues.

Building on Previous Research

Your research should aim to add to what we already know. It can be about any new questions, updating old ideas, or using new technology for more insights. This approach shows the value in your work.

By combining these essential elements, your research’s foundation becomes strong. It makes a clear case for the study’s unique contribution and importance .

Example of a Research Rationale

Abc xyz is a new microalgae species found in fish tanks. It’s getting attention for lots of carotenoids and a special carotenoid profile . Although Abc xyz algae have worried fish farmers, some studies show they could help aquaculture .

Carotenoid profiling of microalgae species

In this genus, only a few microalgal species have been studied for carotenoid content . So far, they haven’t found great sources of these healthy compounds. 4 Studying Abc xyz’s carotenoid profile will help us find new and useful carotenoids. They could be a great natural source for aquaculture . 4

Every research rationale should mention previous findings, gaps in knowledge, and new research questions. This is to update what we know and make it better.

A research rationale can be over ten pages in a thesis . It depends on the topic’s depth. 2 Dissertations might have even longer explanations, maybe a few paragraphs.

  • Preliminary data from a literature review helps make the study’s reasons clear. It also stops us from repeating things we already know.
  • Research that brings together different fields can be very powerful. It makes the work more trustworthy and important.
  • Working with well-known partners makes our studies more reliable. It also helps show why our research is needed.

Importance of Describing the Research Rationale

Explaining why you are doing research is key. It shows the big picture and new ideas of your project. When you tell people why you’re studying something, it makes them see how important and needed your work is. It’s important to share your research’s purpose clearly.

Why you are researching something is really important, especially in a research proposal . But, keep it short, a few sentences are enough. However, for a thesis or dissertation , you might get to talk more about it. You could use a couple of paragraphs to explain in more detail.

To build a strong research rationale , start with a deep look at the literature. Studying what’s already out there helps you find where new studies are needed. This way, your research can truly add something new and not just repeat what others have done.

A solid research rationale should talk about key findings from the literature, points not yet looked into, and areas where old studies don’t agree. It should also explain why more research in this area is needed.

Showing the need for your research makes it more important and valuable. By clearly explaining why your work is needed, you increase its chance of getting recognized by researchers.

Writing a Clear and Concise Rationale

To explain your research’s purpose and what it means, crafting a clear and short rationale is key. The problem-solution-rationale model is a good way to do this. First, point out the problem or issue. Then, suggest a solution. Finally, show why that solution is the right one.

Problem-Solution-Rationale Model

The model makes your ideas clear and logical. Start by clearly stating the problem or gap in knowledge. Then, talk about your solution. This could be a new approach or method. At the end, explain why your choice is the best to solve the problem.

Language for Signaling Rationale

Using certain phrases can show your rationale clearly. Phrases like “in order to,” “for the following reasons,” and “the reason this was done” work well. They make your argument stronger and easier to follow.

A good rationale for research is brief but persuasive. It highlights why your work matters. Using the problem-solution-rationale model and clear language can make your rationale effective. This is important for starting off your research on the right foot. 3

Justifying the Rationale

Showing a strong rationale justification is vital for your research to make an impact. It proves why your study matters and what it can offer the world. By explaining your study’s purpose clearly, you can highlight its big role in advancing what we know.

Showing Importance and Significance

To make your research’s rationale stand out, talk about its importance using phrases like “This was important because…” This shows how your study led to important results or met specific needs, making your work more valuable.

Say something like, “This was significant because it explored a topic not studied enough, which is key for moving our understanding forward. Or, “The importance was in challenging common beliefs, giving a new view on the issue we looked into.”

rational in a thesis

Linking your reasons to real results or filling knowledge gaps strengthens your work’s significance . It shows your study matters and adds real value to your field.

A well-explained rationale not just makes your research more trusted. It also opens doors for more discoveries, pushing knowledge forward.

A strong and clear rationale can help you gain support, be noticed, and create real impact in your area of study and even outside of it.

Tips for Effective Rationale Writing

Writing a good research rationale is key for academics. It helps you talk about your study’s rationale writing tips . You can show why your work matters and how it helps the field. Make sure you explain the “why” of your study clearly. This way, your rationale will catch your audience’s interest.

Getting help from academic writing pros is smart. They offer focused advice and tips on how to show your rationale well. This makes your writing more effective.

Every research rationale should include an overview of conclusions from a literature review , gaps in current knowledge, inconclusive or controversial findings from previous studies, and the need to build on previous research.

When writing your rationale, these rationale writing tips are important to remember:

  • Clearly state the gaps in current knowledge that your study will fill.
  • Show why your study’s results are crucial and how they can make a difference.
  • Talk about how your research adds to what was already known in the field.
  • Be clear and convincing to make your study’s importance clear to readers.

The rationale part should be easy to understand and to the point. It should explain the problem, your solution, and why your research matters. Using resources like guides for writing rationales can make your writing stronger.

Key ElementsDescription
Literature ReviewTalk about the main points from your review to set the stage for your research.
Show what’s missing in the research so far that your study will tackle.
Mention any unclear or disputed results your research can help clarify.
Explain how your work continues or improves on what has been done before.

Use these rationale writing tips and get advice from those with experience. This way, you can create a strong rationale. It will clearly show why your study is important.

Use services of www.editverse.com to write effective Rationale

Editverse.com offers top-notch academic editing services . They help researchers and scholars globally. 5 Their experts work on the rationale section of your papers, making sure it’s clear, coherent, and persuasive.

Making a strong rationale is tough, whether you’re new or experienced. Editverse.com has professional editing just for this. They help you show why your research is important in a clear and impactful way.

Editverse.com’s expert editors will closely look at your rationale. They make sure it: Clearly identifies gaps in existing knowledge Highlights the potential contributions of your study Persuasively justifies the need for your research

Using Editverse.com’s rationale editing makes your research rationale stand out. It boosts the quality of your work, ensuring it grabs your readers’ attention.

Editing ServicesBenefits
Rationale ReviewEnsuring clarity, coherence, and persuasiveness
Formatting AssistanceAdhering to journal guidelines and academic conventions
Language PolishingEnhancing the flow and precision of your writing

Editverse.com’s know-how helps you craft a rationale that shines. It clearly shows your research’s worth and importance.

The rationale for research is key in showing why a study is important. It explains the research’s goal, finds knowledge gaps , and shows its potential. This makes the study stand out for its innovation and value. 1

A strong, well-thought rationale can make your work more likely to be published. It needs to address what’s already known, any debates, and what’s next. By doing this, your research gains more credibility and impact.

No matter if it’s for a proposal, article, or thesis, a powerful rationale is vital. It sets the groundwork for your work’s significance and context. Spending time on this part can greatly enhance your work’s success and recognition in the academic world.

What is the rationale for research?

When is the research rationale written, what is the basis for writing the research rationale, how long should the research rationale be, what are the basic elements of the research rationale, why is it important to describe the research rationale, how can i write a clear and concise rationale, how can i justify the rationale, what are some tips for effective rationale writing, can professional editing services help with writing the research rationale, source links.

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The rationale for one’s research is the justification for undertaking a given study. It states the reason(s) why a researcher chooses to focus on the topic in question, including what the significance is and what gaps the research intends to fill. In short, it is an explanation that rationalises the need for the study. The rationale is typically followed by a hypothesis/ research question (s) and the study objectives.

When is the rationale for research written?

The rationale of a study can be presented both before and after the research is conducted. 

  • Before : The rationale is a crucial part of your research proposal , representing the plan of your work as formulated before you execute your study.
  • After : Once the study is completed, the rationale is presented in a research paper or dissertation to explain why you focused on the particular question. In this instance, you would link the rationale of your research project to the study aims and outcomes.

Basis for writing the research rationale

The study rationale is predominantly based on preliminary data . A literature review will help you identify gaps in the current knowledge base and also ensure that you avoid duplicating what has already been done. You can then formulate the justification for your study from the existing literature on the subject and the perceived outcomes of the proposed study.

Length of the research rationale

In a research proposal or research article, the rationale would not take up more than a few sentences . A thesis or dissertation would allow for a longer description, which could even run into a couple of paragraphs . The length might even depend on the field of study or nature of the experiment. For instance, a completely novel or unconventional approach might warrant a longer and more detailed justification.

Basic elements of the research rationale

Every research rationale should include some mention or discussion of the following: 

  • An overview of your conclusions from your literature review
  • Gaps in current knowledge
  • Inconclusive or controversial findings from previous studies
  • The need to build on previous research (e.g. unanswered questions, the need to update concepts in light of new findings and/or new technical advancements). 

Example of a research rationale

Note: This uses a fictional study.

Abc xyz is a newly identified microalgal species isolated from fish tanks. While Abc xyz algal blooms have been seen as a threat to pisciculture, some studies have hinted at their unusually high carotenoid content and unique carotenoid profile. Carotenoid profiling has been carried out only in a handful of microalgal species from this genus, and the search for microalgae rich in bioactive carotenoids has not yielded promising candidates so far. This in-depth examination of the carotenoid profile of Abc xyz will help identify and quantify novel and potentially useful carotenoids from an untapped aquaculture resource .

In conclusion

It is important to describe the rationale of your research in order to put the significance and novelty of your specific research project into perspective. Once you have successfully articulated the reason(s) for your research, you will have convinced readers of the importance of your work!

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Writing a rationale

How to write a rationale.

What is a rationale?

A rationale is when you are asked to give the reasoning or justification for an action or a choice you make.

There is a focus on the ‘ why ’ in a rationale: why you chose to do something, study or focus on something. It is a set of statements of purpose and significance and often addresses a gap or a need.

A rationale in Australian academic writing is rarely a whole task by itself.  It is often a part of a bigger task. For example, a part of a lesson plan might be to provide a rationale for why you chose to teach particular content or use a certain resource or activity, or you may be asked to provide a rationale as to why you chose a particular theory to apply or a concept to support.

You may be called upon to provide a rationale:

prior to an action or decision; why you plan to do something and how, or

  • after you have acted or decided something; reflecting, looking back, why you did something and how it worked or not.

You can use language to signal you are clearly providing a rationale in your writing. You can link your rationale to learning outcomes or aims for a lesson, activity or assessment task.

A model: problem-solution-rationale

A rationale can be provided by offering longer essay-based support for why it is important to do something in a certain way – in that sense, a whole paper can be a rationale.

However, a more specific or focused way of thinking about a rationale is how we can overtly show we are justifying our choices with the language we use.

One way of doing this is to consider the problem or issue requiring attention, the solution and then the rationale or justification for the solution (the ‘why’). This sets the rationale (the reason) within a context.

A diagnostic assessment determined that the students required more attention to addition and subtraction of mixed fractions. This activity intends to address this problem by having the children engage with the task with blocks before it is done with figures. The reason I chose to do this is because students have higher comprehension levels when presented with visual or tangible representations of abstract problems (Benson, 2016). I also did this as I wanted to allow the children to ‘play’ with maths, to see that it can be a fun activity and in doing so, to breakdown some of the ‘anti-mathematics prejudices’ that Gaines (2017, p. 4) talks about.

The important thing here is the language used to signal the rationale , in this case:

The reason I chose to do this is because … and I also did this as …

Another problem / solution / rationale example:

Scaffolding is the support provided by the teacher or a significant other, such as a classmate, which helps students in learning (Gibbons, 2015). Some students were having difficulty with the language at entry while others, particularly those who had completed the pre-tasks, had few problems. Therefore, in order to address this disparity in level and understanding, mixed-ability pairs were created where the more competent student helped the other. On reflection, this was an effective way to run the activity for two reasons : it allowed peer-to-peer teaching which solidified both students’ understanding; and it scaffolded the support in a way that allowed me to roam the room lending advice to pairs as needed.

The language used to signal our rationale in this example:

in order to and for two reasons …

Language to signal rationale

in order to

the reason this was done/chosen …

for the following reason(s) …

for two/three reasons …

Language for further justification - showing importance

This was important / significant because …

This meant that I could…

This enabled me to …

… which enabled / allowed me to…

… which pointed to / highlighted that / showed me that …

The key thing to remember about rationale writing is to stand back from the writing, look at it in a big picture sense and ask yourself, ‘ Have I explained why? ’ If that is clearly articulated, you have provided a rationale.

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Independent Study – Skills Guide

  • Formulating the Research Question

Introduction and Rationale of the Study

  • Literature Review
  • Research Methodology
  • Research Design
  • Ethical Considerations
  • Data Findings
  • Data Analysis
  • Conclusions

Introduction and rationale of the study

This should briefly outline your area of interest and what has led you to research your chosen area. The rationale section of the dissertation describes why a particular concept, concern or problem is important within the field you are researching. 

A well-constructed rationale demonstrates that you understand your chosen field of research, the competing perspectives that exist, and what you hope to gain by carrying out the research. 

At undergraduate level you will be illuminating your understanding and should be aware that whilst the research you undertake can make a positive contribution to the field (on a small scale) you will not be making a new contribution to knowledge which will improve an entire profession. 

A message from a former student:

"Your Independent Study research is a tremendous opportunity to pursue and discover new knowledge in the field of education. For me, producing a research project was so intellectually liberating, I was encouraged to be critical, critical , critical - and once you become an employee in any educational institution it all changes - you will never get that level of academic freedom again!"

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Research-Methodology

Rationale for the Study

It is important for you to be able to explain the importance of the research you are conducting by providing valid arguments. Rationale for the study, also referred to as justification for the study, is reason why you have conducted your study in the first place. This part in your paper needs to explain uniqueness and importance of your research. Rationale for the study needs to be specific and ideally, it should relate to the following points:

1. The research needs to contribute to the elimination of a gap in the literature. Elimination of gap in the present literature is one of the compulsory requirements for your study. In other words, you don’t need to ‘re-invent the wheel’ and your research aims and objectives need to focus on new topics. For example, you can choose to conduct an empirical study to assess the implications of COVID-19 pandemic on the numbers of tourists visitors in your city. This might be previously undressed topic, taking into account that COVID-19 pandemic is a relatively recent phenomenon.

Alternatively, if you cannot find a new topic to research, you can attempt to offer fresh perspectives on existing management, business or economic issues. For example, while thousands of studies have been previously conducted to study various aspects of leadership, this topic as far from being exhausted as a research area. Specifically, new studies can be conducted in the area of leadership to analyze the impacts of new communication mediums such as TikTok, and other social networking sites on leadership practices.

You can also discuss the shortcomings of previous works devoted to your research area. Shortcomings in previous studies can be divided into three groups:

a) Methodological limitations . Methodology employed in previous study may be flawed in terms of research design, research approach or sampling.

b) Contextual limitations . Relevance of previous works may be non-existent for the present because external factors have changed.

c) Conceptual limitations . Previous studies may be unjustifiably bound up to a particular model or an ideology.

While discussing the shortcomings of previous studies you should explain how you are going to correct them. This principle is true to almost all areas in business studies i.e. gaps or shortcomings in the literature can be found in relation to almost all areas of business and economics.

2. The research can be conducted to solve a specific problem. It helps if you can explain why you are the right person and in the right position to solve the problem. You have to explain the essence of the problem in a detailed manner and highlight practical benefits associated with the solution of the problem. Suppose, your dissertation topic is “a study into advantages and disadvantages of various entry strategies into Chinese market”. In this case, you can say that practical implications of your research relates to assisting businesses aiming to enter Chinese market to do more informed decision making.

Alternatively, if your research is devoted to the analysis of impacts of CSR programs and initiatives on brand image, practical contributions of your study would relate to contributing to the level of effectiveness of CSR programs of businesses.

Additional examples of studies that can assist to address specific practical problems may include the following:

  • A study into the reasons of high employee turnover at Hanson Brick
  • A critical analysis of employee motivation problems at Esporta, Finchley Road, London
  • A research into effective succession planning at Microsoft
  • A study into major differences between private and public primary education in the USA and implications of these differences on the quality of education

However, it is important to note that it is not an obligatory for a dissertation   to be associated with the solution of a specific problem. Dissertations can be purely theory-based as well. Examples of such studies include the following:

  • Born or bred: revising The Great Man theory of leadership in the 21 st century
  • A critical analysis of the relevance of McClelland’s Achievement theory to the US information technology industry
  • Neoliberalism as a major reason behind the emergence of the global financial and economic crisis of 2007-2009
  • Analysis of Lewin’s Model of Change and its relevance to pharmaceutical sector of France

3. Your study has to contribute to the level of professional development of the researcher . That is you. You have to explain in a detailed manner in what ways your research contributes to the achievement of your long-term career aspirations.

For example, you have selected a research topic of “ A critical analysis of the relevance of McClelland’s Achievement theory in the US information technology industry ”.  You may state that you associate your career aspirations with becoming an IT executive in the US, and accordingly, in-depth knowledge of employee motivation in this industry is going to contribute your chances of success in your chosen career path.

Therefore, you are in a better position if you have already identified your career objectives, so that during the research process you can get detailed knowledge about various aspects of your chosen industry.

Rationale for the Study

My e-book, The Ultimate Guide to Writing a Dissertation in Business Studies: a step by step assistance offers practical assistance to complete a dissertation with minimum or no stress. The e-book covers all stages of writing a dissertation starting from the selection to the research area to submitting the completed version of the work within the deadline.

John Dudovskiy

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How to Write a Study Rationale

Last Updated: May 19, 2023 Fact Checked

This article was co-authored by Jake Adams and by wikiHow staff writer, Jennifer Mueller, JD . Jake Adams is an academic tutor and the owner of Simplifi EDU, a Santa Monica, California based online tutoring business offering learning resources and online tutors for academic subjects K-College, SAT & ACT prep, and college admissions applications. With over 14 years of professional tutoring experience, Jake is dedicated to providing his clients the very best online tutoring experience and access to a network of excellent undergraduate and graduate-level tutors from top colleges all over the nation. Jake holds a BS in International Business and Marketing from Pepperdine University. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 58,215 times.

A study rationale explains the reason for a study and the importance of its findings for a particular field. Commonly, you'll need to write a study rationale as part of a university course of study, although you may also need to write one as a professional researcher to apply for funding or other support. As a student, your study rationale also justifies how it fulfills the requirements for your degree program or course of study. Do research before you write your study rationale so that you can discuss the previous work your study builds on and explain its significance to your field. Thorough research is also important in the professional context because your rationale will likely become part of the contract if funding or support is approved. [1] X Research source

Describing What You Hope to Accomplish

Step 1 Define the problem that your study will address.

  • For example, suppose you want to study how working the night shift affects the academic performance of college students who are taking classes during the day. A narrow question would measure a specific impact based on a specific amount of hours worked.

Step 2 Discuss the methodology for your study.

  • Justify the methodology you're using. If there's another methodology that might accomplish the same result, describe it and explain why your methodology is superior — perhaps because it's more efficient, takes less time, or uses fewer resources. For example, you might get more information out of personal interviews, but creating an online questionnaire is more cost-effective.
  • Particularly if you're seeking funding or support, this section of your rationale will also include details about the cost of your study and the facilities or resources you'll need. [3] X Research source

Tip: A methodology that is more complex, difficult, or expensive requires more justification than one that is straightforward and simple.

Step 3 Predict the results of your study.

  • For example, if you're studying the effect of working the night shift on academic performance, you might hypothesize that working 4 or more nights a week lowers students' grade point averages by more than 1 point.

Step 4 Explain what you hope your study will accomplish.

  • Use action words, such as "quantify" or "establish," when writing your goals. For example, you might write that one goal of your study is to "quantify the degree to which working at night inhibits the academic performance of college students."
  • If you are a professional researcher, your objectives may need to be more specific and concrete. The organization you submit your rationale to will have details about the requirements to apply for funding and other support. [5] X Research source

Explaining Your Study's Significance

Step 1 Discuss the previous work that your study will build on.

  • Going into extensive detail usually isn't necessary. Instead, highlight the findings of the most significant work in the field that addressed a similar question.
  • Provide references so that your readers can examine the previous studies for themselves and compare them to your proposed study.

Step 2 Describe the shortcomings of the previous work.

  • Methodological limitations: Previous studies failed to measure the variables appropriately or used a research design that had problems or biases
  • Contextual limitations: Previous studies aren't relevant because circumstances have changed regarding the variables measured
  • Conceptual limitations: Previous studies are too tied up in a specific ideology or framework

Step 3 Identify the ways your study will correct those shortcomings.

  • For example, if a previous study had been conducted to support a university's policy that full-time students were not permitted to work, you might argue that it was too tied up in that specific ideology and that this biased the results. You could then point out that your study is not intended to advance any particular policy.

Tip: If you have to defend or present your rationale to an advisor or team, try to anticipate the questions they might ask you and include the answers to as many of those questions as possible.

Including Academic Proposal Information

Step 1 Provide your credentials or experience as a student or researcher.

  • As a student, you might emphasize your major and specific classes you've taken that give you particular knowledge about the subject of your study. If you've served as a research assistant on a study with a similar methodology or covering a similar research question, you might mention that as well.
  • If you're a professional researcher, focus on the experience you have in a particular field as well as the studies you've done in the past. If you have done studies with a similar methodology that were important in your field, you might mention those as well.

Tip: If you don't have any particular credentials or experience that are relevant to your study, tell the readers of your rationale what drew you to this particular topic and how you became interested in it.

Step 2 State any guidelines required by your degree program or field.

  • For example, if you are planning to conduct the study as fulfillment of the research requirement for your degree program, you might discuss any specific guidelines for that research requirement and list how your study meets those criteria.

Step 3 List the credits you intend your study to fulfill.

  • In most programs, there will be specific wording for you to include in your rationale if you're submitting it for a certain number of credits. Your instructor or advisor can help make sure you've worded this appropriately.

Study Rationale Outline and Example

rational in a thesis

Expert Q&A

  • This article presents an overview of how to write a study rationale. Check with your instructor or advisor for any specific requirements that apply to your particular project. Thanks Helpful 0 Not Helpful 0

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  • ↑ https://research.com/research/how-to-write-research-methodology
  • ↑ https://ris.leeds.ac.uk/applying-for-funding/developing-your-proposal/resources-and-tips/key-questions-for-researchers/
  • ↑ https://www.cwauthors.com/article/how-to-write-the-rationale-for-your-research
  • ↑ http://www.writingcentre.uct.ac.za/sites/default/files/image_tool/images/167/Rationale.pdf
  • ↑ https://www.niaid.nih.gov/grants-contracts/write-research-plan
  • ↑ https://www.esc.edu/degree-planning-academic-review/degree-program/student-degree-planning-guide/rationale-essay-writing/writing-tips/

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The research’s rationale describes why the study was undertaken (in a thesis or article) or why the study should be accompanied (in a proposal). This implies that the research justification should explain why the study is/was necessary to the reader or examiner. It is sometimes known as a study’s “purpose” or “justification.” While this is not difficult to understand in and of itself, you may be questioning how the study’s reasoning differs from your research question or the explanation of the problem of your study and how it turns into the remainder of your thesis or research paper.

Introduction

The rationale of your research is the objective of the study. The reason should explain why the research was started in the first place. It’s an essential part of your work since it demonstrates the significance and uniqueness of your research. As a result, it’s often referred to as the study’s reason. Your analysis would be arranged in an ideal world: observation, justification, hypothesis, objectives, methodology, findings, and conclusions. To begin writing your rationale, offer background information on all the research on your study topic. Then consider, “What is missing?” or “What are the research’s unanswered questions?” Identify the gaps in the literature and explain why they must be filled. Finally, it resolves to serve as the foundation for your investigation.

A study’s reason might be provided before and after the investigation.

  • Before : The reason is essential to your research proposal since it represents the work plan you developed before carrying out your investigation.
  • After : When the investigation is over, the justification is given in a literature research paper or thesis to explain why you choose to focus on the specific subject. In this case, you would connect your research project’s logic to the study’s goals and outcomes.

rational in a thesis

The rationale for the study

Consider a research rationale, a set of arguments explaining why a study is required and significant in light of its context. It is also the study’s reason, rationale, or thesis statement. Essentially, you want to persuade your reader that you are not repeating what others have already stated and that your perspective did not emerge from thin air. You’ve researched and found a knowledge gap that this justification now fills.

Basic elements of the research rationale

Typically, a clinical research justification is provided near the conclusion of the introduction. This area is prominent in high-impact-factor international publications such as Nature and Science. There is usually a line after the introduction that begins with “here we show” or “in this paper, we demonstrate.” This paragraph is part of a logical sequence of information, which is often (but not always) presented in the following order:

  • Research background : What brings you here? Present (and cite) previous research and data on the subject.
  • A gap in the literature : Which gaps haven’t been addressed based on the background evidence presented? Or, what is the problem that needs to be solved/process that needs to be improved?
  • Research rationale : Why is it critical to fill these gaps or to solve/improve this problem/process?
  • Research objectives and methodology : What will you investigate (your research question/goal)? How are you going to approach it (methods)?

rational in a thesis

Hope to accomplish

Describe the issue that your research will address: The problem your study will address, also known as your research subject, informs the reader about the scope of your investigation. Your research topic should be as detailed as possible, especially in a professional environment. In addition, specific research topics are more likely to lead to financing opportunities for your project.

Discourse the methodology for your study:  Explain to your audience how you intend to conduct your clinical research and offer a broad timeline for each stage. Include details about how you plan to contact research participants if your study spans several months or years.

Predict the results of your study:  A hypothesis isn’t always necessary, but it might assist in supporting your case. If you can make a more than speculative forecast, include it in your rationale. To represent your research topic, make your hypothesis as detailed as possible.

Clarify what you hope your study will accomplish:  Your clinical research should uncover something fresh that has not before been explored in your sector. Finding something that no one else has discovered isn’t enough. You must also explain that your findings will significantly advance your field or that they will clear up a past misunderstanding.

rational in a thesis

In a journal-accepted research manuscript, your justification should be no more than a few words long (no longer than one brief paragraph). A longer description is generally allowed in a manuscript or thesis; depending on the length and type of your material, this might be up to several paragraphs lengthy. A wholly new or unique technique may require a more prolonged and extensive justification than one that deviates somewhat from well-established procedures and approaches.

It is critical to discuss the reason for your study to understand the relevance and uniqueness of your research effort. You will have persuaded readers of the significance of your work once you have adequately expressed the reason(s) for your study. Defining the justification research is a critical component of the research process and academic writing in any reasoning research endeavour . This is what you use in your research paper for the first time to explain the research problem inside your dissertation subject. This will give you the research reason you require to define your research topic and potential outcomes.

About Pubrica

Pubrica’s research team generates scientific and medical research articles that practitioners and authors may use as a resource. Pubrica medical writers help you create and modify the introduction by advising the reader of any defects or holes in the chosen research subject. Our experts are familiar with the structure that begins with a broad topic and then continues to a problem and background before going on to a targeted issue to provide the hypothesis.

  • Huggett, Kathryn N., and William B. Jeffries. “Overview of active learning research and rationale for active learning.”  How-to Guide for Active Learning . Springer, Cham, 2021. 1-7.
  • Bandrowski, Anita, et al. “Sparc data structure: Rationale and design of a fair standard for biomedical research data.”  bioRxiv  (2021).
  • Andriotis, Konstantinos. “RATIONALE FOR LAUNCHING A NEW JOURNAL.”  Journal of Qualitative Research  1.1 (2020): 1-6.
  • Russell, David R. “Retreading, Non-ing, and a TPC Rationale for Sub-disciplining in Writing Studies.”  College English  82.5 (2020): 472-483.

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Think of yourself as a member of a jury, listening to a lawyer who is presenting an opening argument. You'll want to know very soon whether the lawyer believes the accused to be guilty or not guilty, and how the lawyer plans to convince you. Readers of academic essays are like jury members: before they have read too far, they want to know what the essay argues as well as how the writer plans to make the argument. After reading your thesis statement, the reader should think, "This essay is going to try to convince me of something. I'm not convinced yet, but I'm interested to see how I might be."

An effective thesis cannot be answered with a simple "yes" or "no." A thesis is not a topic; nor is it a fact; nor is it an opinion. "Reasons for the fall of communism" is a topic. "Communism collapsed in Eastern Europe" is a fact known by educated people. "The fall of communism is the best thing that ever happened in Europe" is an opinion. (Superlatives like "the best" almost always lead to trouble. It's impossible to weigh every "thing" that ever happened in Europe. And what about the fall of Hitler? Couldn't that be "the best thing"?)

A good thesis has two parts. It should tell what you plan to argue, and it should "telegraph" how you plan to argue—that is, what particular support for your claim is going where in your essay.

Steps in Constructing a Thesis

First, analyze your primary sources.  Look for tension, interest, ambiguity, controversy, and/or complication. Does the author contradict himself or herself? Is a point made and later reversed? What are the deeper implications of the author's argument? Figuring out the why to one or more of these questions, or to related questions, will put you on the path to developing a working thesis. (Without the why, you probably have only come up with an observation—that there are, for instance, many different metaphors in such-and-such a poem—which is not a thesis.)

Once you have a working thesis, write it down.  There is nothing as frustrating as hitting on a great idea for a thesis, then forgetting it when you lose concentration. And by writing down your thesis you will be forced to think of it clearly, logically, and concisely. You probably will not be able to write out a final-draft version of your thesis the first time you try, but you'll get yourself on the right track by writing down what you have.

Keep your thesis prominent in your introduction.  A good, standard place for your thesis statement is at the end of an introductory paragraph, especially in shorter (5-15 page) essays. Readers are used to finding theses there, so they automatically pay more attention when they read the last sentence of your introduction. Although this is not required in all academic essays, it is a good rule of thumb.

Anticipate the counterarguments.  Once you have a working thesis, you should think about what might be said against it. This will help you to refine your thesis, and it will also make you think of the arguments that you'll need to refute later on in your essay. (Every argument has a counterargument. If yours doesn't, then it's not an argument—it may be a fact, or an opinion, but it is not an argument.)

This statement is on its way to being a thesis. However, it is too easy to imagine possible counterarguments. For example, a political observer might believe that Dukakis lost because he suffered from a "soft-on-crime" image. If you complicate your thesis by anticipating the counterargument, you'll strengthen your argument, as shown in the sentence below.

Some Caveats and Some Examples

A thesis is never a question.  Readers of academic essays expect to have questions discussed, explored, or even answered. A question ("Why did communism collapse in Eastern Europe?") is not an argument, and without an argument, a thesis is dead in the water.

A thesis is never a list.  "For political, economic, social and cultural reasons, communism collapsed in Eastern Europe" does a good job of "telegraphing" the reader what to expect in the essay—a section about political reasons, a section about economic reasons, a section about social reasons, and a section about cultural reasons. However, political, economic, social and cultural reasons are pretty much the only possible reasons why communism could collapse. This sentence lacks tension and doesn't advance an argument. Everyone knows that politics, economics, and culture are important.

A thesis should never be vague, combative or confrontational.  An ineffective thesis would be, "Communism collapsed in Eastern Europe because communism is evil." This is hard to argue (evil from whose perspective? what does evil mean?) and it is likely to mark you as moralistic and judgmental rather than rational and thorough. It also may spark a defensive reaction from readers sympathetic to communism. If readers strongly disagree with you right off the bat, they may stop reading.

An effective thesis has a definable, arguable claim.  "While cultural forces contributed to the collapse of communism in Eastern Europe, the disintegration of economies played the key role in driving its decline" is an effective thesis sentence that "telegraphs," so that the reader expects the essay to have a section about cultural forces and another about the disintegration of economies. This thesis makes a definite, arguable claim: that the disintegration of economies played a more important role than cultural forces in defeating communism in Eastern Europe. The reader would react to this statement by thinking, "Perhaps what the author says is true, but I am not convinced. I want to read further to see how the author argues this claim."

A thesis should be as clear and specific as possible.  Avoid overused, general terms and abstractions. For example, "Communism collapsed in Eastern Europe because of the ruling elite's inability to address the economic concerns of the people" is more powerful than "Communism collapsed due to societal discontent."

Copyright 1999, Maxine Rodburg and The Tutors of the Writing Center at Harvard University

How to Write a Rationale for Your Dissertation

Samuel hamilton.

Two college students working at a table in a campus study lounge.

Before acquiring a Doctor of Philosophy or Ph.D. degree, graduate students must complete a book-length research study called a dissertation. The first chapter in this document lays out the rationale for your research, according to Linda Bloomberg and Marie Volpe, authors of “Completing Your Qualitative Dissertation.” Your dissertation's rationale introduces your readers to the problem you hope to solve, the current research focusing on that problem, the reason this problem should be discussed, and the method you will use in discussing and solving this problem.

Explore this article

  • Establishing the Context
  • Staging the Problem
  • Describing the Purpose
  • Outlining the Method

1 Establishing the Context

The context for your dissertation’s rationale refers to the research, both past and present, that focuses on the problem you hope to address. Often, establishing the context in your rationale amounts to writing a condensed literature review of this research. In this review, show that you are aware both of other researchers and their positions, and be sure to indicate how you see your own research fitting in with their work.

2 Staging the Problem

The context or literature review of your rationale can often lead directly into your explanation of the problem on which your dissertation focuses. Upon completing your literature review, you can articulate how other researchers have failed to focus on a key issue related to the problem, and it is this issue your own research will directly address. In staging the problem your dissertation will address, you should also argue exactly why that problem needs to be solved. That is, part of staging the problem is arguing for its significance.

3 Describing the Purpose

Upon establishing the context and staging the problem of your research, you must describe the purpose of your dissertation. More specifically, articulate your angle of approach for attempting to solve the problem driving your research. Your angle of approach is related directly to your specific discipline’s approach. For example, historians approach a problem through historical analysis, while psychologists may approach the same problem through psychological analysis. The purpose of your dissertation should be framed around three to five central research questions, which the later chapters of your dissertation will attempt to answer.

4 Outlining the Method

The final step in articulating your dissertation’s rationale is describing your specific research method. The method of your research indicates how you will solve each of your central research questions. That is, your method follows your purpose or angle of approach. For example, a historian’s method may be to closely read and interpret primary archival materials, while a psychologist’s method may be to administer and score a series of psychological surveys. The method you describe in your dissertation’s rationale will guide your approach to solving your research’s central problem.

  • 1 Writing Your Dissertation: Some Guidelines for University Students

About the Author

Samuel Hamilton has been writing since 2002. His work has appeared in “The Penn,” “The Antithesis,” “New Growth Arts Review" and “Deek” magazine. Hamilton holds a Master of Arts in English education from the University of Pittsburgh, and a Master of Arts in composition from the University of Florida.

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Engineering Graduate Studies

Formulating Project Rationale: Designing Arguments

Jump to: Activity Examples

Compelling thesis projects are based on strong arguments: a series of claims that make a convincing case for the significance and impact of your thesis project as well as the effectiveness of your approach. Although this rationale may seem evident to you as researcher, you may need to work to convince your audience, which is why strong persuasive arguments are so important.   

The activities below will guide you to…  

  • Identify examples of strong arguments within sample papers.  
  • Practice using a logical approach to argument design.  
  • Map out the central claims of your research project, and consider how you can best support each with appropriate rationale.  

Important Concepts  

There are various approaches to constructing argument, but for the purposes of generating your thesis claims, we will use  Toulmin’s model.   This model, named for British rhetorician Stephen Toulmin, begins with the three components summarized below: 

Claim:  Assertion that an idea is true/applicable or relevant; takes the form of a recommendation, a point of analysis, an interpretation of data, or a hypothesis that you as an author wish to prove to an audience

Warrant/Justification:  An explanation that connects the evidence to the claim; may be signalled by a causal connector (because, since, consequently, given)   

Grounds/Evidence:  The facts that support this assertion; takes the form of data, testing, modelling, prior research or other scientific principles  

Let’s take a look at how these components are connected in the following example:   

rational in a thesis

The structure of the model often follows the structure above, but each component is a moving piece. The order of justification and evidence may be switched with minimal wordsmithing and without losing the meaning of the argument.

rational in a thesis

Toulmin’s model includes three additional components that move beyond these basic building blocks, these are:   

Backing:  Provides further evidence for the claim  

Qualifier:  Acknowledges that the argument is not always true or  limits the argument: may be signalled by words like however, but….  

Rebuttal:  Anticipates a counterargument by acknowledging another perspective   

These last two components are particularly important when drafting your thesis rationale: your gap will often take the form of a qualifier, as you acknowledge the limits of the research to date; your literature review reveals counterarguments, which may also be acknowledged and dealt with in your rationale.   

Let’s take a look at a qualifier and rebuttal for the above argument about EMS response time:   

rational in a thesis

Suggested Activity – Identifying Arguments in a Research Paper  

Estimated time: 30 min

Using the sample research proposals provided or a published research paper that is of interest to you, notice how the authors utilize Toulmin’s logic to create clear and convincing arguments that support their research objectives. Use the samples to practice identifying the main components of the Toulmin model (claim, justification, and evidence), as well as when a qualifier or rebuttal is used. Was the proposal/article persuasive to you as a reader?  

Suggested Activity – Identifying Arguments in Your Research  

Estimated time: 30 min  

  • Refer to the mindmap of your thesis project that you created in the previous module .  
  • List the primary arguments that you are or will be making in your thesis project.  
  • For each argument, map out and fill in details for the three major components of the Toulmin’s model: claim, justification, evidence.   
  • Are there any gaps in the claims that you made that you can fill in? Are there any central claims that you will make during your research that might be missing?  
  • Keep the argument outline that you have generated in this activity to use in the next activity.  

Suggested Activity – Mapping Claims on an Argument Continuum  

Estimated time: 45 min  

  • Refer to the arguments that you outlined in terms of claim, justification, and evidence in activity 1.  Using the ‘ mapping claims worksheet ’ provided, classify your claims along the continuum from big picture to focused/project specific. Map your claims along the continuum in a logical order of clusters.  

Take a look at the Activity 2 Examples in this module to see samples of mapped claims.  

Big Picture:  Which of your claims are related more to the overall focus and challenges in your field as a whole?

Project Specific: Which of your claims are more specific to your unique thesis project and individual research outcomes?  

  • Once your claims are in order on the worksheet, explore ways that you can connect claims together. What are possible ‘linking’ statements that you would use to connect these ideas together to logically move from the bigger picture to the specifics? How do claims relate to one another to build an argument? Do any claims need to be moved in the logic or deleted? Are there repetitions here? Write down and map out some of the links that help you logically move from the big picture to the project specific claims on your worksheet. Move, delete, or adjust claims to improve the flow of logic from general to specific claims to build a more convincing and coherent story for your thesis project.    
  • Share your mapped and linked claims with a peer or someone outside of your research group if possible. Were they able to understand the flow of your logic in the order in which you presented your arguments? Are there any claims that are missing, unsupported, or undeveloped?   
  • From your own reflections and/or peer feedback, revise the structure or shuffle the order of claims on your continuum to produce a more coherent and logical flow.  

Things to think about…  

  • The map that you generate in this module will form the basis of a motivation outline for your research project.   

Activity Examples

Examples of 2 short and 2 long research proposals on climate change and pollution.
Sample OGS research proposal in clinical engineering (optimizing defibrillator placement).
Sample 1 page research proposal investigating microfluidics for stem cell isolation.
Sample 2 page research proposal investigating microfluidics for stem cell isolation.
Argument Continuum worksheet for mapping claims in order from big picture to specific.
Examples of mapped claims.

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How to Write a Thesis or Dissertation Introduction

Published on September 7, 2022 by Tegan George and Shona McCombes. Revised on November 21, 2023.

The introduction is the first section of your thesis or dissertation , appearing right after the table of contents . Your introduction draws your reader in, setting the stage for your research with a clear focus, purpose, and direction on a relevant topic .

Your introduction should include:

  • Your topic, in context: what does your reader need to know to understand your thesis dissertation?
  • Your focus and scope: what specific aspect of the topic will you address?
  • The relevance of your research: how does your work fit into existing studies on your topic?
  • Your questions and objectives: what does your research aim to find out, and how?
  • An overview of your structure: what does each section contribute to the overall aim?

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Table of contents

How to start your introduction, topic and context, focus and scope, relevance and importance, questions and objectives, overview of the structure, thesis introduction example, introduction checklist, other interesting articles, frequently asked questions about introductions.

Although your introduction kicks off your dissertation, it doesn’t have to be the first thing you write — in fact, it’s often one of the very last parts to be completed (just before your abstract ).

It’s a good idea to write a rough draft of your introduction as you begin your research, to help guide you. If you wrote a research proposal , consider using this as a template, as it contains many of the same elements. However, be sure to revise your introduction throughout the writing process, making sure it matches the content of your ensuing sections.

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Begin by introducing your dissertation topic and giving any necessary background information. It’s important to contextualize your research and generate interest. Aim to show why your topic is timely or important. You may want to mention a relevant news item, academic debate, or practical problem.

After a brief introduction to your general area of interest, narrow your focus and define the scope of your research.

You can narrow this down in many ways, such as by:

  • Geographical area
  • Time period
  • Demographics or communities
  • Themes or aspects of the topic

It’s essential to share your motivation for doing this research, as well as how it relates to existing work on your topic. Further, you should also mention what new insights you expect it will contribute.

Start by giving a brief overview of the current state of research. You should definitely cite the most relevant literature, but remember that you will conduct a more in-depth survey of relevant sources in the literature review section, so there’s no need to go too in-depth in the introduction.

Depending on your field, the importance of your research might focus on its practical application (e.g., in policy or management) or on advancing scholarly understanding of the topic (e.g., by developing theories or adding new empirical data). In many cases, it will do both.

Ultimately, your introduction should explain how your thesis or dissertation:

  • Helps solve a practical or theoretical problem
  • Addresses a gap in the literature
  • Builds on existing research
  • Proposes a new understanding of your topic

Perhaps the most important part of your introduction is your questions and objectives, as it sets up the expectations for the rest of your thesis or dissertation. How you formulate your research questions and research objectives will depend on your discipline, topic, and focus, but you should always clearly state the central aim of your research.

If your research aims to test hypotheses , you can formulate them here. Your introduction is also a good place for a conceptual framework that suggests relationships between variables .

  • Conduct surveys to collect data on students’ levels of knowledge, understanding, and positive/negative perceptions of government policy.
  • Determine whether attitudes to climate policy are associated with variables such as age, gender, region, and social class.
  • Conduct interviews to gain qualitative insights into students’ perspectives and actions in relation to climate policy.

To help guide your reader, end your introduction with an outline  of the structure of the thesis or dissertation to follow. Share a brief summary of each chapter, clearly showing how each contributes to your central aims. However, be careful to keep this overview concise: 1-2 sentences should be enough.

I. Introduction

Human language consists of a set of vowels and consonants which are combined to form words. During the speech production process, thoughts are converted into spoken utterances to convey a message. The appropriate words and their meanings are selected in the mental lexicon (Dell & Burger, 1997). This pre-verbal message is then grammatically coded, during which a syntactic representation of the utterance is built.

Speech, language, and voice disorders affect the vocal cords, nerves, muscles, and brain structures, which result in a distorted language reception or speech production (Sataloff & Hawkshaw, 2014). The symptoms vary from adding superfluous words and taking pauses to hoarseness of the voice, depending on the type of disorder (Dodd, 2005). However, distortions of the speech may also occur as a result of a disease that seems unrelated to speech, such as multiple sclerosis or chronic obstructive pulmonary disease.

This study aims to determine which acoustic parameters are suitable for the automatic detection of exacerbations in patients suffering from chronic obstructive pulmonary disease (COPD) by investigating which aspects of speech differ between COPD patients and healthy speakers and which aspects differ between COPD patients in exacerbation and stable COPD patients.

Checklist: Introduction

I have introduced my research topic in an engaging way.

I have provided necessary context to help the reader understand my topic.

I have clearly specified the focus of my research.

I have shown the relevance and importance of the dissertation topic .

I have clearly stated the problem or question that my research addresses.

I have outlined the specific objectives of the research .

I have provided an overview of the dissertation’s structure .

You've written a strong introduction for your thesis or dissertation. Use the other checklists to continue improving your dissertation.

If you want to know more about AI for academic writing, AI tools, or research bias, make sure to check out some of our other articles with explanations and examples or go directly to our tools!

Research bias

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The introduction of a research paper includes several key elements:

  • A hook to catch the reader’s interest
  • Relevant background on the topic
  • Details of your research problem

and your problem statement

  • A thesis statement or research question
  • Sometimes an overview of the paper

Don’t feel that you have to write the introduction first. The introduction is often one of the last parts of the research paper you’ll write, along with the conclusion.

This is because it can be easier to introduce your paper once you’ve already written the body ; you may not have the clearest idea of your arguments until you’ve written them, and things can change during the writing process .

Research objectives describe what you intend your research project to accomplish.

They summarize the approach and purpose of the project and help to focus your research.

Your objectives should appear in the introduction of your research paper , at the end of your problem statement .

Scope of research is determined at the beginning of your research process , prior to the data collection stage. Sometimes called “scope of study,” your scope delineates what will and will not be covered in your project. It helps you focus your work and your time, ensuring that you’ll be able to achieve your goals and outcomes.

Defining a scope can be very useful in any research project, from a research proposal to a thesis or dissertation . A scope is needed for all types of research: quantitative , qualitative , and mixed methods .

To define your scope of research, consider the following:

  • Budget constraints or any specifics of grant funding
  • Your proposed timeline and duration
  • Specifics about your population of study, your proposed sample size , and the research methodology you’ll pursue
  • Any inclusion and exclusion criteria
  • Any anticipated control , extraneous , or confounding variables that could bias your research if not accounted for properly.

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The thesis statement or main claim must be debatable

An argumentative or persuasive piece of writing must begin with a debatable thesis or claim. In other words, the thesis must be something that people could reasonably have differing opinions on. If your thesis is something that is generally agreed upon or accepted as fact then there is no reason to try to persuade people.

Example of a non-debatable thesis statement:

This thesis statement is not debatable. First, the word pollution implies that something is bad or negative in some way. Furthermore, all studies agree that pollution is a problem; they simply disagree on the impact it will have or the scope of the problem. No one could reasonably argue that pollution is unambiguously good.

Example of a debatable thesis statement:

This is an example of a debatable thesis because reasonable people could disagree with it. Some people might think that this is how we should spend the nation's money. Others might feel that we should be spending more money on education. Still others could argue that corporations, not the government, should be paying to limit pollution.

Another example of a debatable thesis statement:

In this example there is also room for disagreement between rational individuals. Some citizens might think focusing on recycling programs rather than private automobiles is the most effective strategy.

The thesis needs to be narrow

Although the scope of your paper might seem overwhelming at the start, generally the narrower the thesis the more effective your argument will be. Your thesis or claim must be supported by evidence. The broader your claim is, the more evidence you will need to convince readers that your position is right.

Example of a thesis that is too broad:

There are several reasons this statement is too broad to argue. First, what is included in the category "drugs"? Is the author talking about illegal drug use, recreational drug use (which might include alcohol and cigarettes), or all uses of medication in general? Second, in what ways are drugs detrimental? Is drug use causing deaths (and is the author equating deaths from overdoses and deaths from drug related violence)? Is drug use changing the moral climate or causing the economy to decline? Finally, what does the author mean by "society"? Is the author referring only to America or to the global population? Does the author make any distinction between the effects on children and adults? There are just too many questions that the claim leaves open. The author could not cover all of the topics listed above, yet the generality of the claim leaves all of these possibilities open to debate.

Example of a narrow or focused thesis:

In this example the topic of drugs has been narrowed down to illegal drugs and the detriment has been narrowed down to gang violence. This is a much more manageable topic.

We could narrow each debatable thesis from the previous examples in the following way:

Narrowed debatable thesis 1:

This thesis narrows the scope of the argument by specifying not just the amount of money used but also how the money could actually help to control pollution.

Narrowed debatable thesis 2:

This thesis narrows the scope of the argument by specifying not just what the focus of a national anti-pollution campaign should be but also why this is the appropriate focus.

Qualifiers such as " typically ," " generally ," " usually ," or " on average " also help to limit the scope of your claim by allowing for the almost inevitable exception to the rule.

Types of claims

Claims typically fall into one of four categories. Thinking about how you want to approach your topic, or, in other words, what type of claim you want to make, is one way to focus your thesis on one particular aspect of your broader topic.

Claims of fact or definition: These claims argue about what the definition of something is or whether something is a settled fact. Example:

Claims of cause and effect: These claims argue that one person, thing, or event caused another thing or event to occur. Example:

Claims about value: These are claims made of what something is worth, whether we value it or not, how we would rate or categorize something. Example:

Claims about solutions or policies: These are claims that argue for or against a certain solution or policy approach to a problem. Example:

Which type of claim is right for your argument? Which type of thesis or claim you use for your argument will depend on your position and knowledge of the topic, your audience, and the context of your paper. You might want to think about where you imagine your audience to be on this topic and pinpoint where you think the biggest difference in viewpoints might be. Even if you start with one type of claim you probably will be using several within the paper. Regardless of the type of claim you choose to utilize it is key to identify the controversy or debate you are addressing and to define your position early on in the paper.

rational in a thesis

Lio Wong Thesis Defense: From Words to Worlds: Bridging Language and Thought

Date:  August 6, 2024, 1:00pm.

Location:  Singleton Auditorium

Zoom:  https://mit.zoom.us/j/5375638590?omn=98330491929  

Committee : Chair: Roger Levy; Advisors: Joshua Tenenbaum and Jacob Andreas; Other committee members: Judith Fan (Stanford) and Laura Schulz 

Title:  From Words to Worlds: Bridging Language and Thought

Abstract:  What do we understand when we understand language? Human language offers a broad window into the landscape of our thoughts. We talk about what we see, believe, and imagine, posing questions and communicating our plans. Language, in turn, stocks our mental inventories with new concepts and theories, communicating ideas that we might not otherwise have discovered by thinking on our own even over the course of a lifetime. How do we make meaning from language, and how, in turn, does the meaning we construct from language draw on the other resources and capacities of human thought, from perception, to mental simulation and decision making?

This thesis proposes a computational framework for modeling language-informed thinking, organized into two parts. In the first, I overview the overarching framework that makes up the backbone of this thesis, Rational Meaning Construction, which proposes how natural language can construct arbitrary expressions in a flexible, symbolic, and probabilistic language of thought that supports general inferences. I present examples and experiments demonstrating the range of this theory, modeling how concrete propositions and questions in language can update and query beliefs about many different domains of knowledge. In the second section, I turn to language that communicates more abstract conceptual knowledge -- generic background concepts and theories that we can learn from language, and which give us building blocks for representing more concrete beliefs. I present three models that build on the basic premises of Rational Meaning Construction to learn new lexical concepts and theories from language. The first models how we can learn new theories from generic sentences that explicitly communicate or implicitly presuppose abstract knowledge. The second elaborates on this model to also incorporate environmental feedback alongside information from language. The third suggests how we can learn the meanings of new words from scratch, with very little linguistic data, using principles of both representational and communicative efficiency to guide learning. I conclude by discussing open questions that this thesis raises about how we learn and understand language, and outline future directions that might make progress on answering them.

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Dissertation Rationale

Table of Contents

How to Craft a Winning Dissertation Rationale in Three Simple Steps?

As per research, in most universities, 15% weightage is given to your dissertation rationale composition., that means that if this section is ill-composed then you can lose a precious 15% out of your total dissertation marks..

The main purpose of a rationale is to provide a true, convincing, and believable argument regarding your investigative work from the point of view of your reviewers. It is usually located in the introduction section of your thesis and may be repeated in the conclusion depending on your results and findings.

So how should you write a rationale that makes your thesis stand out?

Below mentioned are three simple steps through which you can compose your thesis rationale in no time.

  • While writing your research rationale, make sure that you keep the following questions in mind
  • What problem will be tested in the dissertation and what will be the specific questions asked regarding the subject?
  • What is the objective of the entire study?
  • Is the intention of the study stated clearly?
  • Who will aid from this research?
  • How will your research fit into the broader field of work?
  • Are there limitations in the project?
  • While articulating this section, make sure that you keep your reviewers in mind and structure it from their point of view. While composing the rationale, follow the below-mentioned structural guidelines.
  • Make sure that your sentences are grammatically correct with the proper sentence structuring and no spelling mistakes. (get it proofread by a peer or supervisor if you doubt your own skills)
  • Make sure that the composition is brief and to the point.
  • Don’t try to explain terms that your reviewers should already be aware of. Just try to use them in your rationale in such a way that it defines its functionality properly.
  • After you have composed a rationale that caters to the above-mentioned components, take assistance from one of your peers or your supervisor and ask them how soundly you have justified your work.

In conclusion, make sure that you walk your audience through the entire process of the thesis slowly in your rationale. Start in the sequence of your research report, starting with the introduction of the theme and moving on to the objectives and methodology briefly. You can also include citations and references where you think are necessary. Follow the above-mentioned three simple steps and you will be to craft yourself a winning research rationale in no time.

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RSC Chemical Biology

Enhancement of tryptophan 2-monooxygenase thermostability by semi-rational enzyme engineering: a strategic design to minimize experimental investigation.

Tryptophan 2-monooxygenase (TMO) is an FAD-bound flavoenzyme which catalyzes the oxidative decarboxylation of L-tryptophan to produce indole-3-acetamide (IAM) and carbon dioxide. The reaction of TMO is the first step of indole-3-acetic acid (IAA) biosynthesis. Although TMO is of interest for mechanistic studies and synthetic biology applications, the enzyme has low thermostability and soluble expression yield. Herein, we employed a combined approach of rational design using computational tools with site-saturation mutagenesis to screen for TMO variants with significantly improved thermostability properties and soluble protein expression. The engineered TMO variants, TMO-PWS and TMO-PWSNR, possess melting temperatures (Tm) of 65 ˚C, 17 ˚C higher than that of the wild-type enzyme (TMO-WT). At 50 ˚C, the stabilities (t1/2) of TMO-PWS and TMO-PWSNR were 85-fold and 92.4-fold higher, while their soluble expression yields were 1.4-fold and 2.1-fold greater than TMO-WT, respectively. Remarkably, the kinetic parameters of these variants were similar to those of the wild-type enzymes, illustrating that they are promising candidates for future studies. Molecular dynamic simulations of the wild-type and thermostable TMO variants identified key interactions for enhancing these improvements in the biophysical properties of the TMO variants. The introduced mutations contributed to hydrogen bond formation and an increase in the regional hydrophobicity, thereby, strengthening the TMO structure.

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rational in a thesis

S. Kongjaroon, N. Lawan, D. Trisrivirat and P. Chaiyen, RSC Chem. Biol. , 2024, Accepted Manuscript , DOI: 10.1039/D4CB00102H

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  28. Enhancement of tryptophan 2-monooxygenase ...

    Tryptophan 2-monooxygenase (TMO) is an FAD-bound flavoenzyme which catalyzes the oxidative decarboxylation of L-tryptophan to produce indole-3-acetamide (IAM) and carbon dioxide. The reaction of TMO is the first step of indole-3-acetic acid (IAA) biosynthesis. Although TMO is of interest for mechanistic stud

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