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Here's What You Need to Understand About Research Methodology

Table of Contents

Research methodology involves a systematic and well-structured approach to conducting scholarly or scientific inquiries. Knowing the significance of research methodology and its different components is crucial as it serves as the basis for any study.

Typically, your research topic will start as a broad idea you want to investigate more thoroughly. Once you’ve identified a research problem and created research questions , you must choose the appropriate methodology and frameworks to address those questions effectively.

What is the definition of a research methodology?

Research methodology is the process or the way you intend to execute your study. The methodology section of a research paper outlines how you plan to conduct your study. It covers various steps such as collecting data, statistical analysis, observing participants, and other procedures involved in the research process

The methods section should give a description of the process that will convert your idea into a study. Additionally, the outcomes of your process must provide valid and reliable results resonant with the aims and objectives of your research. This thumb rule holds complete validity, no matter whether your paper has inclinations for qualitative or quantitative usage.

Studying research methods used in related studies can provide helpful insights and direction for your own research. Now easily discover papers related to your topic on SciSpace and utilize our AI research assistant, Copilot , to quickly review the methodologies applied in different papers.

The need for a good research methodology

While deciding on your approach towards your research, the reason or factors you weighed in choosing a particular problem and formulating a research topic need to be validated and explained. A research methodology helps you do exactly that. Moreover, a good research methodology lets you build your argument to validate your research work performed through various data collection methods, analytical methods, and other essential points.

Just imagine it as a strategy documented to provide an overview of what you intend to do.

While undertaking any research writing or performing the research itself, you may get drifted in not something of much importance. In such a case, a research methodology helps you to get back to your outlined work methodology.

A research methodology helps in keeping you accountable for your work. Additionally, it can help you evaluate whether your work is in sync with your original aims and objectives or not. Besides, a good research methodology enables you to navigate your research process smoothly and swiftly while providing effective planning to achieve your desired results.

What is the basic structure of a research methodology?

Usually, you must ensure to include the following stated aspects while deciding over the basic structure of your research methodology:

1. Your research procedure

Explain what research methods you’re going to use. Whether you intend to proceed with quantitative or qualitative, or a composite of both approaches, you need to state that explicitly. The option among the three depends on your research’s aim, objectives, and scope.

2. Provide the rationality behind your chosen approach

Based on logic and reason, let your readers know why you have chosen said research methodologies. Additionally, you have to build strong arguments supporting why your chosen research method is the best way to achieve the desired outcome.

3. Explain your mechanism

The mechanism encompasses the research methods or instruments you will use to develop your research methodology. It usually refers to your data collection methods. You can use interviews, surveys, physical questionnaires, etc., of the many available mechanisms as research methodology instruments. The data collection method is determined by the type of research and whether the data is quantitative data(includes numerical data) or qualitative data (perception, morale, etc.) Moreover, you need to put logical reasoning behind choosing a particular instrument.

4. Significance of outcomes

The results will be available once you have finished experimenting. However, you should also explain how you plan to use the data to interpret the findings. This section also aids in understanding the problem from within, breaking it down into pieces, and viewing the research problem from various perspectives.

5. Reader’s advice

Anything that you feel must be explained to spread more awareness among readers and focus groups must be included and described in detail. You should not just specify your research methodology on the assumption that a reader is aware of the topic.  

All the relevant information that explains and simplifies your research paper must be included in the methodology section. If you are conducting your research in a non-traditional manner, give a logical justification and list its benefits.

6. Explain your sample space

Include information about the sample and sample space in the methodology section. The term "sample" refers to a smaller set of data that a researcher selects or chooses from a larger group of people or focus groups using a predetermined selection method. Let your readers know how you are going to distinguish between relevant and non-relevant samples. How you figured out those exact numbers to back your research methodology, i.e. the sample spacing of instruments, must be discussed thoroughly.

For example, if you are going to conduct a survey or interview, then by what procedure will you select the interviewees (or sample size in case of surveys), and how exactly will the interview or survey be conducted.

7. Challenges and limitations

This part, which is frequently assumed to be unnecessary, is actually very important. The challenges and limitations that your chosen strategy inherently possesses must be specified while you are conducting different types of research.

The importance of a good research methodology

You must have observed that all research papers, dissertations, or theses carry a chapter entirely dedicated to research methodology. This section helps maintain your credibility as a better interpreter of results rather than a manipulator.

A good research methodology always explains the procedure, data collection methods and techniques, aim, and scope of the research. In a research study, it leads to a well-organized, rationality-based approach, while the paper lacking it is often observed as messy or disorganized.

You should pay special attention to validating your chosen way towards the research methodology. This becomes extremely important in case you select an unconventional or a distinct method of execution.

Curating and developing a strong, effective research methodology can assist you in addressing a variety of situations, such as:

• When someone tries to duplicate or expand upon your research after few years.
• If a contradiction or conflict of facts occurs at a later time. This gives you the security you need to deal with these contradictions while still being able to defend your approach.
• Gaining a tactical approach in getting your research completed in time. Just ensure you are using the right approach while drafting your research methodology, and it can help you achieve your desired outcomes. Additionally, it provides a better explanation and understanding of the research question itself.
• Documenting the results so that the final outcome of the research stays as you intended it to be while starting.

Instruments you could use while writing a good research methodology

As a researcher, you must choose which tools or data collection methods that fit best in terms of the relevance of your research. This decision has to be wise.

There exists many research equipments or tools that you can use to carry out your research process. These are classified as:

a. Interviews (One-on-One or a Group)

An interview aimed to get your desired research outcomes can be undertaken in many different ways. For example, you can design your interview as structured, semi-structured, or unstructured. What sets them apart is the degree of formality in the questions. On the other hand, in a group interview, your aim should be to collect more opinions and group perceptions from the focus groups on a certain topic rather than looking out for some formal answers.

In surveys, you are in better control if you specifically draft the questions you seek the response for. For example, you may choose to include free-style questions that can be answered descriptively, or you may provide a multiple-choice type response for questions. Besides, you can also opt to choose both ways, deciding what suits your research process and purpose better.

c. Sample Groups

Similar to the group interviews, here, you can select a group of individuals and assign them a topic to discuss or freely express their opinions over that. You can simultaneously note down the answers and later draft them appropriately, deciding on the relevance of every response.

d. Observations

If your research domain is humanities or sociology, observations are the best-proven method to draw your research methodology. Of course, you can always include studying the spontaneous response of the participants towards a situation or conducting the same but in a more structured manner. A structured observation means putting the participants in a situation at a previously decided time and then studying their responses.

Of all the tools described above, it is you who should wisely choose the instruments and decide what’s the best fit for your research. You must not restrict yourself from multiple methods or a combination of a few instruments if appropriate in drafting a good research methodology.

Types of research methodology

A research methodology exists in various forms. Depending upon their approach, whether centered around words, numbers, or both, methodologies are distinguished as qualitative, quantitative, or an amalgamation of both.

1. Qualitative research methodology

When a research methodology primarily focuses on words and textual data, then it is generally referred to as qualitative research methodology. This type is usually preferred among researchers when the aim and scope of the research are mainly theoretical and explanatory.

The instruments used are observations, interviews, and sample groups. You can use this methodology if you are trying to study human behavior or response in some situations. Generally, qualitative research methodology is widely used in sociology, psychology, and other related domains.

2. Quantitative research methodology

If your research is majorly centered on data, figures, and stats, then analyzing these numerical data is often referred to as quantitative research methodology. You can use quantitative research methodology if your research requires you to validate or justify the obtained results.

In quantitative methods, surveys, tests, experiments, and evaluations of current databases can be advantageously used as instruments If your research involves testing some hypothesis, then use this methodology.

3. Amalgam methodology

As the name suggests, the amalgam methodology uses both quantitative and qualitative approaches. This methodology is used when a part of the research requires you to verify the facts and figures, whereas the other part demands you to discover the theoretical and explanatory nature of the research question.

The instruments for the amalgam methodology require you to conduct interviews and surveys, including tests and experiments. The outcome of this methodology can be insightful and valuable as it provides precise test results in line with theoretical explanations and reasoning.

The amalgam method, makes your work both factual and rational at the same time.

Final words: How to decide which is the best research methodology?

If you have kept your sincerity and awareness intact with the aims and scope of research well enough, you must have got an idea of which research methodology suits your work best.

Before deciding which research methodology answers your research question, you must invest significant time in reading and doing your homework for that. Taking references that yield relevant results should be your first approach to establishing a research methodology.

Moreover, you should never refrain from exploring other options. Before setting your work in stone, you must try all the available options as it explains why the choice of research methodology that you finally make is more appropriate than the other available options.

You should always go for a quantitative research methodology if your research requires gathering large amounts of data, figures, and statistics. This research methodology will provide you with results if your research paper involves the validation of some hypothesis.

Whereas, if  you are looking for more explanations, reasons, opinions, and public perceptions around a theory, you must use qualitative research methodology.The choice of an appropriate research methodology ultimately depends on what you want to achieve through your research.

Frequently Asked Questions (FAQs) about Research Methodology

1. how to write a research methodology.

You can always provide a separate section for research methodology where you should specify details about the methods and instruments used during the research, discussions on result analysis, including insights into the background information, and conveying the research limitations.

2. What are the types of research methodology?

There generally exists four types of research methodology i.e.

• Observation
• Experimental
• Derivational

3. What is the true meaning of research methodology?

The set of techniques or procedures followed to discover and analyze the information gathered to validate or justify a research outcome is generally called Research Methodology.

4. Where lies the importance of research methodology?

Your research methodology directly reflects the validity of your research outcomes and how well-informed your research work is. Moreover, it can help future researchers cite or refer to your research if they plan to use a similar research methodology.

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Choosing the Right Research Methodology: A Guide for Researchers

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Table of Contents

Choosing an optimal research methodology is crucial for the success of any research project. The methodology you select will determine the type of data you collect, how you collect it, and how you analyse it. Understanding the different types of research methods available along with their strengths and weaknesses, is thus imperative to make an informed decision.

Understanding different research methods:

There are several research methods available depending on the type of study you are conducting, i.e., whether it is laboratory-based, clinical, epidemiological, or survey based . Some common methodologies include qualitative research, quantitative research, experimental research, survey-based research, and action research. Each method can be opted for and modified, depending on the type of research hypotheses and objectives.

Qualitative vs quantitative research:

When deciding on a research methodology, one of the key factors to consider is whether your research will be qualitative or quantitative. Qualitative research is used to understand people’s experiences, concepts, thoughts, or behaviours . Quantitative research, on the contrary, deals with numbers, graphs, and charts, and is used to test or confirm hypotheses, assumptions, and theories. 

Qualitative research methodology:

Qualitative research is often used to examine issues that are not well understood, and to gather additional insights on these topics. Qualitative research methods include open-ended survey questions, observations of behaviours described through words, and reviews of literature that has explored similar theories and ideas. These methods are used to understand how language is used in real-world situations, identify common themes or overarching ideas, and describe and interpret various texts. Data analysis for qualitative research typically includes discourse analysis, thematic analysis, and textual analysis. 

Quantitative research methodology:

The goal of quantitative research is to test hypotheses, confirm assumptions and theories, and determine cause-and-effect relationships. Quantitative research methods include experiments, close-ended survey questions, and countable and numbered observations. Data analysis for quantitative research relies heavily on statistical methods.

Analysing qualitative vs quantitative data:

The methods used for data analysis also differ for qualitative and quantitative research. As mentioned earlier, quantitative data is generally analysed using statistical methods and does not leave much room for speculation. It is more structured and follows a predetermined plan. In quantitative research, the researcher starts with a hypothesis and uses statistical methods to test it. Contrarily, methods used for qualitative data analysis can identify patterns and themes within the data, rather than provide statistical measures of the data. It is an iterative process, where the researcher goes back and forth trying to gauge the larger implications of the data through different perspectives and revising the analysis if required.

When to use qualitative vs quantitative research:

The choice between qualitative and quantitative research will depend on the gap that the research project aims to address, and specific objectives of the study. If the goal is to establish facts about a subject or topic, quantitative research is an appropriate choice. However, if the goal is to understand people’s experiences or perspectives, qualitative research may be more suitable. 

Conclusion:

In conclusion, an understanding of the different research methods available, their applicability, advantages, and disadvantages is essential for making an informed decision on the best methodology for your project. If you need any additional guidance on which research methodology to opt for, you can head over to Elsevier Author Services (EAS). EAS experts will guide you throughout the process and help you choose the perfect methodology for your research goals.

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Home » Research Methods – Types, Examples and Guide

Research Methods – Types, Examples and Guide

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Research Methods

Definition:

Research Methods refer to the techniques, procedures, and processes used by researchers to collect , analyze, and interpret data in order to answer research questions or test hypotheses. The methods used in research can vary depending on the research questions, the type of data that is being collected, and the research design.

Types of Research Methods

Types of Research Methods are as follows:

Qualitative research Method

Qualitative research methods are used to collect and analyze non-numerical data. This type of research is useful when the objective is to explore the meaning of phenomena, understand the experiences of individuals, or gain insights into complex social processes. Qualitative research methods include interviews, focus groups, ethnography, and content analysis.

Quantitative Research Method

Quantitative research methods are used to collect and analyze numerical data. This type of research is useful when the objective is to test a hypothesis, determine cause-and-effect relationships, and measure the prevalence of certain phenomena. Quantitative research methods include surveys, experiments, and secondary data analysis.

Mixed Method Research

Mixed Method Research refers to the combination of both qualitative and quantitative research methods in a single study. This approach aims to overcome the limitations of each individual method and to provide a more comprehensive understanding of the research topic. This approach allows researchers to gather both quantitative data, which is often used to test hypotheses and make generalizations about a population, and qualitative data, which provides a more in-depth understanding of the experiences and perspectives of individuals.

Key Differences Between Research Methods

The following Table shows the key differences between Quantitative, Qualitative and Mixed Research Methods

Examples of Research Methods

Examples of Research Methods are as follows:

Qualitative Research Example:

A researcher wants to study the experience of cancer patients during their treatment. They conduct in-depth interviews with patients to gather data on their emotional state, coping mechanisms, and support systems.

Quantitative Research Example:

A company wants to determine the effectiveness of a new advertisement campaign. They survey a large group of people, asking them to rate their awareness of the product and their likelihood of purchasing it.

Mixed Research Example:

A university wants to evaluate the effectiveness of a new teaching method in improving student performance. They collect both quantitative data (such as test scores) and qualitative data (such as feedback from students and teachers) to get a complete picture of the impact of the new method.

Applications of Research Methods

Research methods are used in various fields to investigate, analyze, and answer research questions. Here are some examples of how research methods are applied in different fields:

• Psychology : Research methods are widely used in psychology to study human behavior, emotions, and mental processes. For example, researchers may use experiments, surveys, and observational studies to understand how people behave in different situations, how they respond to different stimuli, and how their brains process information.
• Sociology : Sociologists use research methods to study social phenomena, such as social inequality, social change, and social relationships. Researchers may use surveys, interviews, and observational studies to collect data on social attitudes, beliefs, and behaviors.
• Medicine : Research methods are essential in medical research to study diseases, test new treatments, and evaluate their effectiveness. Researchers may use clinical trials, case studies, and laboratory experiments to collect data on the efficacy and safety of different medical treatments.
• Education : Research methods are used in education to understand how students learn, how teachers teach, and how educational policies affect student outcomes. Researchers may use surveys, experiments, and observational studies to collect data on student performance, teacher effectiveness, and educational programs.
• Business : Research methods are used in business to understand consumer behavior, market trends, and business strategies. Researchers may use surveys, focus groups, and observational studies to collect data on consumer preferences, market trends, and industry competition.
• Environmental science : Research methods are used in environmental science to study the natural world and its ecosystems. Researchers may use field studies, laboratory experiments, and observational studies to collect data on environmental factors, such as air and water quality, and the impact of human activities on the environment.
• Political science : Research methods are used in political science to study political systems, institutions, and behavior. Researchers may use surveys, experiments, and observational studies to collect data on political attitudes, voting behavior, and the impact of policies on society.

Purpose of Research Methods

Research methods serve several purposes, including:

• Identify research problems: Research methods are used to identify research problems or questions that need to be addressed through empirical investigation.
• Develop hypotheses: Research methods help researchers develop hypotheses, which are tentative explanations for the observed phenomenon or relationship.
• Collect data: Research methods enable researchers to collect data in a systematic and objective way, which is necessary to test hypotheses and draw meaningful conclusions.
• Analyze data: Research methods provide tools and techniques for analyzing data, such as statistical analysis, content analysis, and discourse analysis.
• Test hypotheses: Research methods allow researchers to test hypotheses by examining the relationships between variables in a systematic and controlled manner.
• Draw conclusions : Research methods facilitate the drawing of conclusions based on empirical evidence and help researchers make generalizations about a population based on their sample data.
• Enhance understanding: Research methods contribute to the development of knowledge and enhance our understanding of various phenomena and relationships, which can inform policy, practice, and theory.

When to Use Research Methods

Research methods are used when you need to gather information or data to answer a question or to gain insights into a particular phenomenon.

Here are some situations when research methods may be appropriate:

• To investigate a problem : Research methods can be used to investigate a problem or a research question in a particular field. This can help in identifying the root cause of the problem and developing solutions.
• To gather data: Research methods can be used to collect data on a particular subject. This can be done through surveys, interviews, observations, experiments, and more.
• To evaluate programs : Research methods can be used to evaluate the effectiveness of a program, intervention, or policy. This can help in determining whether the program is meeting its goals and objectives.
• To explore new areas : Research methods can be used to explore new areas of inquiry or to test new hypotheses. This can help in advancing knowledge in a particular field.
• To make informed decisions : Research methods can be used to gather information and data to support informed decision-making. This can be useful in various fields such as healthcare, business, and education.

Advantages of Research Methods

Research methods provide several advantages, including:

• Objectivity : Research methods enable researchers to gather data in a systematic and objective manner, minimizing personal biases and subjectivity. This leads to more reliable and valid results.
• Replicability : A key advantage of research methods is that they allow for replication of studies by other researchers. This helps to confirm the validity of the findings and ensures that the results are not specific to the particular research team.
• Generalizability : Research methods enable researchers to gather data from a representative sample of the population, allowing for generalizability of the findings to a larger population. This increases the external validity of the research.
• Precision : Research methods enable researchers to gather data using standardized procedures, ensuring that the data is accurate and precise. This allows researchers to make accurate predictions and draw meaningful conclusions.
• Efficiency : Research methods enable researchers to gather data efficiently, saving time and resources. This is especially important when studying large populations or complex phenomena.
• Innovation : Research methods enable researchers to develop new techniques and tools for data collection and analysis, leading to innovation and advancement in the field.

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Research Methodologies

• What are research designs?

What are research methodologies?

Quantitative research methodologies, qualitative research methodologies, mixed method methodologies, selecting a methodology.

• What are research methods?
• Additional Sources

According to Dawson (2019),a research methodology is the primary principle that will guide your research.  It becomes the general approach in conducting research on your topic and determines what research method you will use. A research methodology is different from a research method because research methods are the tools you use to gather your data (Dawson, 2019).  You must consider several issues when it comes to selecting the most appropriate methodology for your topic.  Issues might include research limitations and ethical dilemmas that might impact the quality of your research.  Descriptions of each type of methodology are included below.

Quantitative research methodologies are meant to create numeric statistics by using survey research to gather data (Dawson, 2019).  This approach tends to reach a larger amount of people in a shorter amount of time.  According to Labaree (2020), there are three parts that make up a quantitative research methodology:

• Sample population
• How you will collect your data (this is the research method)
• How you will analyze your data

Once you decide on a methodology, you can consider the method to which you will apply your methodology.

Qualitative research methodologies examine the behaviors, opinions, and experiences of individuals through methods of examination (Dawson, 2019).  This type of approach typically requires less participants, but more time with each participant.  It gives research subjects the opportunity to provide their own opinion on a certain topic.

Examples of Qualitative Research Methodologies

• Action research:  This is when the researcher works with a group of people to improve something in a certain environment.  It is a common approach for research in organizational management, community development, education, and agriculture (Dawson, 2019).
• Ethnography:  The process of organizing and describing cultural behaviors (Dawson, 2019).  Researchers may immerse themselves into another culture to receive in "inside look" into the group they are studying.  It is often a time consuming process because the researcher will do this for a long period of time.  This can also be called "participant observation" (Dawson, 2019).
• Feminist research:  The goal of this methodology is to study topics that have been dominated by male test subjects.  It aims to study females and compare the results to previous studies that used male participants (Dawson, 2019).
• Grounded theory:  The process of developing a theory to describe a phenomenon strictly through the data results collected in a study.  It is different from other research methodologies where the researcher attempts to prove a hypothesis that they create before collecting data.  Popular research methods for this approach include focus groups and interviews (Dawson, 2019).

A mixed methodology allows you to implement the strengths of both qualitative and quantitative research methods.  In some cases, you may find that your research project would benefit from this.  This approach is beneficial because it allows each methodology to counteract the weaknesses of the other (Dawson, 2019).  You should consider this option carefully, as it can make your research complicated if not planned correctly.

What should you do to decide on a research methodology?  The most logical way to determine your methodology is to decide whether you plan on conducting qualitative or qualitative research.  You also have the option to implement a mixed methods approach.  Looking back on Dawson's (2019) five "W's" on the previous page , may help you with this process.  You should also look for key words that indicate a specific type of research methodology in your hypothesis or proposal.  Some words may lean more towards one methodology over another.

Quantitative Research Key Words

• How satisfied

Qualitative Research Key Words

• Experiences
• Thoughts/Think
• Relationship
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What is Research Methodology? Definition, Types, and Examples

The ability to conduct research, which is the art of finding information, is an important ability in today’s world. Whether you’re engaged in formal academic research as a student or professional or simply trying to locate information on where to buy something you need or the best vacation spot, research consumes an increasing amount of time in our lives thanks to the amount of information available on the internet.

Research is a skill, one that takes time to learn. How should you go about looking for the information you need, and how can you be certain that what you’ve found is accurate and reliable? There are established ways of locating or producing trustworthy information. These are known as research methods or research methodology.

Table of Content:

• What Is Research Methodology?

Types of Research Methodology

Selecting and Explaining Your Research Methodology

Let’s take a look at what research methodology is and isn’t and learn how to choose the appropriate research methodology that is suitable to the task at hand.

What is Research Methodology?

Research methodology is the underlying framework that guides your research . Research methodology must be systematic and intentional. This does not mean that it needs to be overly complex; it simply means that there must be some thought behind the methods that you choose to base your research on.

In the context of academia, an explanation of the research methodology that was followed  forms an essential part of any article or study.

The research methodology of an academic publication helps readers understand:

• What data was collected
• How the data was collected
• How the data was analyzed
• Why was the study conducted the way it was

Why is research methodology important?

Let’s take an example. Suppose you are studying the effects of drug X on a specific disease. You find one study that claims drug X is very effective for people who have the disease and another that claims drug X is only effective for people who have not had the disease for very long. In such a case, how do you figure out which study is reliable?

The truth is, although studies sometimes simply find conflicting results, usually, the reasons behind such different results can be found in the research methodology section. There is a possibility that the first study that found drug X to be very effective only studied people who had a milder form of the disease.

Perhaps the first study only examined women, while the second study examined an equal number of men and women. Maybe the drug dosages administered to the study group were different in the two studies. All of this information can be found in the research methodology section of a study and is essential for understanding what the research really means and determining how significant the results are.

There are different types of research methodologies. One methodology is not necessarily better than another. Rather, each methodology is suitable for different purposes.

The two main types of research methodologies are quantitative and qualitative .

Quantitative research methodology generally uses statistics or other such numerical data (tangibles), while qualitative research methodology analyzes beliefs, cultural behaviors, concepts, descriptions, and other similar data (intangibles).

The mixed methods research methodology uses both quantitative and qualitative research techniques .

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You have likely encountered all three types of research methodologies in your life. Quantitative research methodology examples would include studies like the one above on drug efficacy, with efficacy measured in numerical terms (how much percent did a tumor shrink? how much did the white blood cell count increase? how many days did it take for the patient to regain consciousness?).

Qualitative research methods are used to determine how many people support a political policy or how much rising oil prices have impacted food costs for the average consumer.

Qualitative research methodology examples include studies in which people are asked about their perceptions (who they think won an electoral debate, whether they consider themselves middle class), their understanding of an idea (what does kindness mean to you?), or identity concepts (do you consider yourself male, female, or neither?).

Quantitative research methods are used to understand phenomena that cannot be easily quantified. Mixed methods research examples include the use of both broad representative survey data and key informant interviews, where the public is asked their opinion on an issue and then experts are interviewed in-depth to provide a bigger picture of the issue.

The primary driving factor behind your choice of research methodology is simple: what do you want to know, and how can you know it . If you want to find out whether American children prefer lemon or apple-flavored candy so that you can sell more candy in the US, perhaps a survey of a representative sample of children would give you your answer in numerical form; therefore, you should choose a quantitative research method.

However, if you want to understand why so many engineering terms in Korean are of German and Japanese origin, perhaps a review of historical documents and interviews with engineers in Korea might help, in which case, you should choose a qualitative research method.

When you write a research methodology section in your research study, you will need to make sure that you clearly explain what method you chose, why you chose it, and how you went about implementing it.

If you performed a survey among children, how did you find those children? What questions did you ask them? Why did you ask those particular questions? How did you analyze their answers? Did you quantify the data results? How?

All of these elements must be included so that readers can both understand what you did and why you did it. Ideally, someone else who reads your study should be able to replicate it exactly after reading your methodology section and examining your data.

Although it sounds a little overwhelming, writing a research methodology section well is not very difficult. If you’re concerned about the technical writing aspect, you can always turn to an online grammar checker like Trinka to make sure that your tone and style are appropriate, technical terms are correctly used, and the writing style is sufficiently formal.

As long as you have a clear research question and properly mapped-out strategy to obtain the data you need and analyze it, you have all the necessary elements to write a great research methodology.

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Research Methodology

Methodology refers to the overarching strategy and rationale of your research. Developing your methodology involves studying the research methods used in your field and the theories or principles that underpin them, in order to choose the approach that best matches your research objectives. Methodology is the first step in planning a research project.

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Discourse analysis, scientific method, qualitative research, experiments.

The scientific method is a step-by-step process used by researchers and scientists to determine if there is a relationship between two or more variables. Psychologists use this method to conduct psychological research, gather data, process information, and describe behaviors.

Learn More: Steps of the Scientific Method

Variables apply to experimental investigations. The independent variable is the variable the experimenter manipulates or changes. The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable.

Learn More: Independent and Dependent Variables

When you perform a statistical test a p-value helps you determine the significance of your results in relation to the null hypothesis. A p-value less than 0.05 (typically ≤ 0.05) is statistically significant.

Learn More: P-Value and Statistical Significance

Qualitative research is a process used for the systematic collection, analysis, and interpretation of non-numerical data. Qualitative research can be used to gain a deep contextual understanding of the subjective social reality of individuals.

The experimental method involves the manipulation of variables to establish cause-and-effect relationships. The key features are controlled methods and the random allocation of participants into controlled and experimental groups.

Learn More: How the Experimental Method Works in Psychology

Frequent Asked Questions

What does p-value of 0.05 mean?

A p-value less than 0.05 (typically ≤ 0.05) is statistically significant. It indicates strong evidence against the null hypothesis, as there is less than a 5% probability the results have occurred by random chance rather than a real effect. Therefore, we reject the null hypothesis and accept the alternative hypothesis.

However, it is important to note that the p-value is not the only factor that should be considered when interpreting the results of a hypothesis test. Other factors, such as effect size, should also be considered.

Learn More: What A p-Value Tells You About Statistical Significance

What does z-score tell you?

A  z-score  describes the position of a raw score in terms of its distance from the mean when measured in standard deviation units. It is also known as a standard score because it allows the comparison of scores on different variables by standardizing the distribution. The z-score is positive if the value lies above the mean and negative if it lies below the mean.

Learn More: Z-Score: Definition, Calculation, Formula, & Interpretation

What is an independent vs dependent variable?

The independent variable is the variable the experimenter manipulates or changes and is assumed to have a direct effect on the dependent variable. For example, allocating participants to either drug or placebo conditions (independent variable) to measure any changes in the intensity of their anxiety (dependent variable).

Learn More : What are Independent and Dependent Variables?

What is the difference between qualitative and quantitative?

Quantitative data is numerical information about quantities and qualitative data is descriptive and regards phenomena that can be observed but not measured, such as language.

Learn More: What’s the difference between qualitative and quantitative research?

Explore Research Methodology

Phenomenology In Qualitative Research

Ethnography In Qualitative Research

Narrative Analysis In Qualitative Research

Thematic Analysis: A Step by Step Guide

Metasynthesis Of Qualitative Research

Grounded Theory In Qualitative Research: A Practical Guide

Qualitative Data Coding

What Is a Focus Group?

Cross-Cultural Research Methodology In Psychology

What Is Internal Validity In Research?

Reviewed by Saul Mcleod, PhD

What Is Face Validity In Research? Importance & How To Measure

Criterion Validity: Definition & Examples

Convergent Validity: Definition and Examples

Content Validity in Research: Definition & Examples

Construct Validity In Psychology Research

Concurrent Validity In Psychology

Internal vs. External Validity In Psychology

Qualitative Research: Characteristics, Design, Methods & Examples

Demand Characteristics In Psychology: Definition, Examples & Control

Between-Subjects vs. Within-Subjects Study Design

Random Assignment in Psychology: Definition & Examples

Double-Blind Experimental Study And Procedure Explained

Observer Bias: Definition, Examples & Prevention

Sampling Bias: Types, Examples & How to Avoid It

What is The Null Hypothesis & When Do You Reject The Null Hypothesis

Between-Subjects Design: Overview & Examples

What Is A Case Control Study?

Case Study Research Method in Psychology

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Home Market Research

What is Research: Definition, Methods, Types & Examples

The search for knowledge is closely linked to the object of study; that is, to the reconstruction of the facts that will provide an explanation to an observed event and that at first sight can be considered as a problem. It is very human to seek answers and satisfy our curiosity. Let’s talk about research.

Content Index

What is Research?

What are the characteristics of research.

• Comparative analysis chart

Qualitative methods

Quantitative methods, 8 tips for conducting accurate research.

Research is the careful consideration of study regarding a particular concern or research problem using scientific methods. According to the American sociologist Earl Robert Babbie, “research is a systematic inquiry to describe, explain, predict, and control the observed phenomenon. It involves inductive and deductive methods.”

Inductive methods analyze an observed event, while deductive methods verify the observed event. Inductive approaches are associated with qualitative research , and deductive methods are more commonly associated with quantitative analysis .

Research is conducted with a purpose to:

• Identify potential and new customers
• Understand existing customers
• Set pragmatic goals
• Develop productive market strategies
• Address business challenges
• Put together a business expansion plan
• Identify new business opportunities
• Good research follows a systematic approach to capture accurate data. Researchers need to practice ethics and a code of conduct while making observations or drawing conclusions.
• The analysis is based on logical reasoning and involves both inductive and deductive methods.
• Real-time data and knowledge is derived from actual observations in natural settings.
• There is an in-depth analysis of all data collected so that there are no anomalies associated with it.
• It creates a path for generating new questions. Existing data helps create more research opportunities.
• It is analytical and uses all the available data so that there is no ambiguity in inference.
• Accuracy is one of the most critical aspects of research. The information must be accurate and correct. For example, laboratories provide a controlled environment to collect data. Accuracy is measured in the instruments used, the calibrations of instruments or tools, and the experiment’s final result.

What is the purpose of research?

There are three main purposes:

• Exploratory: As the name suggests, researchers conduct exploratory studies to explore a group of questions. The answers and analytics may not offer a conclusion to the perceived problem. It is undertaken to handle new problem areas that haven’t been explored before. This exploratory data analysis process lays the foundation for more conclusive data collection and analysis.

LEARN ABOUT: Descriptive Analysis

• Descriptive: It focuses on expanding knowledge on current issues through a process of data collection. Descriptive research describe the behavior of a sample population. Only one variable is required to conduct the study. The three primary purposes of descriptive studies are describing, explaining, and validating the findings. For example, a study conducted to know if top-level management leaders in the 21st century possess the moral right to receive a considerable sum of money from the company profit.

LEARN ABOUT: Best Data Collection Tools

• Explanatory: Causal research or explanatory research is conducted to understand the impact of specific changes in existing standard procedures. Running experiments is the most popular form. For example, a study that is conducted to understand the effect of rebranding on customer loyalty.

Here is a comparative analysis chart for a better understanding:

It begins by asking the right questions and choosing an appropriate method to investigate the problem. After collecting answers to your questions, you can analyze the findings or observations to draw reasonable conclusions.

When it comes to customers and market studies, the more thorough your questions, the better the analysis. You get essential insights into brand perception and product needs by thoroughly collecting customer data through surveys and questionnaires . You can use this data to make smart decisions about your marketing strategies to position your business effectively.

To make sense of your study and get insights faster, it helps to use a research repository as a single source of truth in your organization and manage your research data in one centralized data repository .

Types of research methods and Examples

Research methods are broadly classified as Qualitative and Quantitative .

Both methods have distinctive properties and data collection methods .

Qualitative research is a method that collects data using conversational methods, usually open-ended questions . The responses collected are essentially non-numerical. This method helps a researcher understand what participants think and why they think in a particular way.

Types of qualitative methods include:

• One-to-one Interview
• Focus Groups
• Ethnographic studies
• Text Analysis

Quantitative methods deal with numbers and measurable forms . It uses a systematic way of investigating events or data. It answers questions to justify relationships with measurable variables to either explain, predict, or control a phenomenon.

Types of quantitative methods include:

• Survey research
• Descriptive research
• Correlational research

LEARN MORE: Descriptive Research vs Correlational Research

Remember, it is only valuable and useful when it is valid, accurate, and reliable. Incorrect results can lead to customer churn and a decrease in sales.

It is essential to ensure that your data is:

• Valid – founded, logical, rigorous, and impartial.
• Accurate – free of errors and including required details.
• Reliable – other people who investigate in the same way can produce similar results.
• Timely – current and collected within an appropriate time frame.
• Complete – includes all the data you need to support your business decisions.

Gather insights

• Identify the main trends and issues, opportunities, and problems you observe. Write a sentence describing each one.
• Keep track of the frequency with which each of the main findings appears.
• Make a list of your findings from the most common to the least common.
• Evaluate a list of the strengths, weaknesses, opportunities, and threats identified in a SWOT analysis .
• Prepare conclusions and recommendations about your study.
• Act on your strategies
• Look for gaps in the information, and consider doing additional inquiry if necessary
• Plan to review the results and consider efficient methods to analyze and interpret results.

Review your goals before making any conclusions about your study. Remember how the process you have completed and the data you have gathered help answer your questions. Ask yourself if what your analysis revealed facilitates the identification of your conclusions and recommendations.

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Methodology

Ai generator.

Methodology refers to the systematic study of methods used in research. It includes Research Methodology , which is the framework for conducting investigations, and Survey Methodology , which involves techniques for collecting and analyzing survey data. A key part of any methodology is the Research Question, guiding the study’s focus and direction.

What is Methodology?

Methodology refers to the systematic study of methods used in research, encompassing principles and procedures that guide scientific investigations. It includes Research Methodology, which outlines the framework for conducting studies, and Survey Methodology, which involves techniques for collecting and analyzing survey data.

Examples of Methodology

• Surveys : Distributing questionnaires to gather quantitative data from a large sample.
• Interviews : Conducting one-on-one conversations to collect detailed qualitative data.
• Focus Groups : Facilitating group discussions to explore participants’ perceptions and opinions.
• Case Studies : Performing in-depth analysis of a single subject or group to understand complex issues.
• Experiments : Implementing controlled tests to determine causal relationships between variables.
• Participant Observation : Observing and engaging with participants in their natural environment.
• Longitudinal Studies : Tracking the same individuals over an extended period to observe changes.
• Cross-Sectional Studies : Analyzing data from different groups at a single point in time.
• Content Analysis : Systematically analyzing text or media to identify patterns and themes.
• Secondary Data Analysis : Using existing data collected by others to conduct new analyses.
• Meta-Analysis : Combining results from multiple studies to draw a broader conclusion.
• Delphi Technique : Gathering expert opinions through multiple rounds of questionnaires to achieve consensus.
• Ethnography : Immersing in a community to understand its culture and practices.
• Grounded Theory : Developing theories based on data collected during the research.
• Action Research : Collaborating with participants to address a problem and implement solutions.
• Comparative Method : Comparing different groups or cases to identify similarities and differences.
• Historical Analysis : Examining historical records to understand past events and trends.
• Systematic Review : Summarizing and evaluating existing research on a specific topic.
• Descriptive Research : Describing characteristics of a population or phenomenon.
• Narrative Inquiry : Studying personal stories and experiences to gain insights.
• Visual Analysis : Analyzing visual materials such as photographs and videos.
• Experimental Design : Using control and experimental groups to test hypotheses.
• Phenomenology : Exploring individuals’ lived experiences to understand their perceptions.
• Biographical Research : Studying an individual’s life history and experiences.
• Field Experiments : Conducting experiments in natural settings.
• Survey Design : Creating and administering surveys to collect data.
• Program Evaluation : Assessing the effectiveness of a program or intervention.
• Network Analysis : Examining relationships and interactions within a network.
• Discourse Analysis : Studying language use in texts and conversations.
• Quasi-Experimental Design : Implementing studies with non-randomized control and treatment groups.

Examples of Methodology in a Sentences

• The interview methodology involved conducting in-depth, one-on-one interviews with participants.
• A survey methodology was used to gather data from a large population using structured questionnaires.
• The case study methodology focused on an in-depth analysis of a single organization.
• Ethnographic methodology involved immersing researchers in the community to observe daily activities.
• A mixed-methods approach was utilized, combining quantitative surveys and qualitative interviews.
• Experimental methodology included a control group and a treatment group to test the hypothesis.
• Participant observation was employed to understand the behaviors and interactions within the group.
• The longitudinal study methodology tracked participants over several years to observe changes.
• Content analysis was used to analyze the themes and patterns in social media posts.
• The focus group methodology gathered diverse opinions on the new product concept.
• A cross-sectional study was conducted to compare different population groups at a single point in time.
• Action research methodology involved the participants in the research process to improve practices.
• The phenomenological methodology aimed to understand individuals’ lived experiences.
• Grounded theory methodology was used to develop a theory based on data collected from participants.
• The narrative research methodology focused on the stories and personal accounts of the participants.
• Secondary data analysis involved analyzing data previously collected by other researchers.
• Delphi methodology gathered expert opinions through multiple rounds of questionnaires.
• Comparative methodology analyzed differences and similarities between two distinct groups.
• The meta-analysis methodology combined results from multiple studies to draw a comprehensive conclusion.
• Historical research methodology examined past events to understand their impact on the present.
• The survey methodology included both closed-ended and open-ended questions to capture detailed responses.
• Field experiments were conducted to test the intervention in a natural setting.
• Discourse analysis examined the language and communication patterns within the texts.
• The biographical research methodology studied individuals’ life histories and personal experiences.
• Quantitative content analysis was used to count and analyze the frequency of specific words or themes.
• Case-control study methodology compared individuals with a specific condition to those without it.
• Systematic review methodology evaluated and synthesized findings from existing research studies.
• Experimental design methodology manipulated variables to observe their effect on the outcome.
• Visual ethnography involved analyzing visual materials such as photographs and videos.
• Clinical trial methodology tested the efficacy and safety of new medical treatments through controlled experiments.

Methodology Examples in Project Proposal

1. Survey Methodology : We will distribute online surveys to 500 participants to gather quantitative data on customer satisfaction levels.

2. Interview Methodology : Conduct semi-structured interviews with 20 key stakeholders to gain insights into project requirements and expectations.

3. Focus Group Methodology : Facilitate focus groups with selected users to discuss and refine the design of the new software interface.

4 . Case Study Methodology : Analyze three case studies of similar projects to identify best practices and potential pitfalls.

5. Experimental Methodology : Implement a controlled experiment to test the impact of the new training program on employee productivity.

6. Ethnographic Methodology : Engage in participant observation within the target community for three months to understand user behavior and cultural influences.

7. Mixed Methods Approach : Combine quantitative data from surveys with qualitative insights from interviews to provide a comprehensive analysis of project outcomes.

8. Action Research Methodology : Collaborate with project team members to iteratively implement and assess improvements, ensuring continuous feedback and adaptation.

9. Content Analysis : Review and analyze project-related documents and communications to identify common themes and areas for improvement.

10. Delphi Methodology : Use the Delphi technique to gather and refine expert opinions through multiple rounds of questionnaires to achieve a consensus on project goals and strategies.

Methodology Examples in Report

Example 1: survey methodology.

In this study, we employed a survey methodology to collect data from participants. The survey was designed to gather information on consumer preferences and behaviors. The key steps in our survey methodology were as follows:

• Population : All residents of City X aged 18 and above.
• Sample Size : 500 participants selected through random sampling.
• Questionnaire : A structured questionnaire with 25 closed-ended questions.
• Pilot Testing : Conducted with 50 participants to ensure clarity and reliability of the questions.
• Mode : Online survey distributed via email.
• Duration : Data collection spanned over two weeks from January 10 to January 24, 2024.
• Software : SPSS version 26.
• Techniques : Descriptive statistics, cross-tabulations, and chi-square tests.

Example 2: Experimental Methodology

This experiment aimed to evaluate the effectiveness of a new teaching method on students’ performance. The experimental methodology comprised the following steps:

• Selection : 100 high school students from School Y.
• Grouping : Randomly assigned to control (n=50) and experimental (n=50) groups.
• Pre-test : Administered to both groups to assess initial knowledge levels.
• Intervention : The experimental group received the new teaching method, while the control group continued with the traditional method for six weeks.
• Post-test : Conducted to measure knowledge acquisition and retention.
• Teaching Aids : Interactive multimedia tools for the experimental group.
• Traditional Tools : Textbooks and lectures for the control group.
• Software : R programming language.
• Techniques : T-tests to compare pre-test and post-test scores between groups.

Example 3: Qualitative Methodology

For this research, we utilized a qualitative methodology to explore the experiences of healthcare workers during the pandemic. The methodology included:

• Selection : 30 healthcare workers from various hospitals.
• Sampling Technique : Purposive sampling to ensure diverse perspectives.
• Interviews : Semi-structured interviews conducted in-person and via Zoom.
• Duration : Each interview lasted approximately 45-60 minutes.
• Recording : With participants’ consent, interviews were a-recorded and transcribed verbatim.
• Approach : Thematic analysis.
• Software : NVivo for coding and organizing themes.
• Validation : Member checking and peer debriefing to ensure credibility.

Example 4: Case Study Methodology

In this case study, we investigated the implementation of a new software system in Company Z. The methodology involved:

• Criteria : Companies that recently implemented the software within the past year.
• Company Profile : Medium-sized company with 200 employees.
• Interviews : Conducted with key stakeholders including IT staff, managers, and end-users.
• Documents : Analysis of company reports, project plans, and user feedback forms.
• Observations : On-site visits to observe the software in use.
• Techniques : Triangulation to corroborate findings from multiple sources.
• Framework : SWOT analysis to identify strengths, weaknesses, opportunities, and threats related to the software implementation.

Example 5: Mixed-Methods Methodology

This mixed-methods study examined the impact of remote work on employee productivity and well-being. The methodology comprised both quantitative and qualitative components:

• Survey : Online survey with Likert-scale questions administered to 300 employees.
• Analysis : Regression analysis to identify factors affecting productivity.
• Focus Groups : Three focus groups with 8-10 participants each to discuss remote work experiences.
• Thematic Analysis : Coding and theme development using Atlas.ti.
• Data Triangulation : Combined findings from both quantitative and qualitative data to provide a comprehensive understanding of the impact of remote work.

Quantitative Methodology Examples

• Survey Research : Conducting a large-scale survey to collect numerical data on consumer preferences.
• Experimental Design : Implementing a controlled experiment to test the effects of a new drug on patient recovery rates.
• Cross-Sectional Study : Analyzing data from different population groups at a single point in time to identify correlations.
• Longitudinal Study : Tracking the same group of individuals over several years to observe changes in health outcomes.
• Secondary Data Analysis : Using existing datasets from government databases to analyze employment trends.
• Quasi-Experimental Design : Comparing outcomes between a group receiving an intervention and a non-randomized control group.
• Descriptive Statistics : Summarizing and describing the main features of a dataset using measures such as mean, median, and mode.
• Regression Analysis : Investigating the relationship between independent variables and a dependent variable to predict outcomes.
• Correlation Study : Measuring the strength and direction of the relationship between two variables, such as income and education level.
• Time Series Analysis : Analyzing data points collected or recorded at specific time intervals to identify trends over time.

Types of Methodology

1. qualitative methodology.

This involves collecting non-numerical data to understand concepts, opinions, or experiences. Methods include:

• Interviews : Conducting one-on-one conversations to gather detailed insights.
• Focus Groups : Facilitating group discussions to explore a specific topic.
• Observations : Watching and recording behaviors in a natural setting.

2. Quantitative Methodology

This focuses on numerical data and statistical analysis. Methods include:

• Surveys : Using questionnaires to collect data from a large number of respondents.
• Experiments : Conducting controlled tests to determine cause-and-effect relationships.
• Secondary Data Analysis : Analyzing existing data collected by other researchers.

3. Mixed Methods

This combines both qualitative and quantitative approaches. It provides a comprehensive understanding by integrating diverse data sources.

• Sequential Explanatory Design : Collecting and analyzing quantitative data first, followed by qualitative data to explain the quantitative results.
• Concurrent Triangulation : Collecting both types of data simultaneously to cross-verify findings.

4. Case Study Methodology

This involves an in-depth study of a particular case within a real-world context. Methods include:

• Document Analysis : Reviewing existing documents related to the case.
• Interviews : Gathering detailed information from individuals involved in the case.
• Observations : Observing the case in its natural setting to gather contextual data.

5. Ethnographic Methodology

This focuses on studying cultures and communities. Methods include:

• Participant Observation : Engaging with the community while observing their behaviors and interactions.
• Field Notes : Recording detailed notes of observations and experiences in the field.
• Interviews : Conducting interviews with community members to gain deeper insights.

Each of these methodologies provides a different approach to research, helping researchers to choose the most appropriate method for their specific study objectives.

Importance of Methodology in Research

1. ensures research validity and reliability.

• Validity : Methodology ensures that the research measures what it is intended to measure. It guarantees that the results accurately represent the phenomenon being studied.
• Reliability : It ensures consistency in the research results. Reliable methodologies produce stable and consistent results over repeated trials.

2. Provides a Clear Research Framework

• Structured Process : Methodology provides a detailed plan outlining the steps involved in the research process. This structure helps researchers stay organized and focused.
• Replicability : A well-defined methodology allows other researchers to replicate the study, verifying results and contributing to the body of knowledge.

3. Enhances Credibility and Objectivity

• Transparency : Clearly documenting the research methodology enhances the transparency of the study, allowing others to understand how data was collected and analyzed.
• Objectivity : By following a systematic approach, methodology minimizes biases and ensures objective analysis and interpretation of data.

4. Facilitates Data Collection and Analysis

• Appropriate Tools and Techniques : Methodology helps in selecting the most suitable tools and techniques for data collection and analysis, ensuring accurate and relevant data is gathered.
• Efficient Analysis : With a clear methodological framework, data analysis becomes more efficient, leading to valid conclusions and insights.

5. Supports Theory Development and Hypothesis Testing

• Theory Development : Methodologies, particularly in qualitative research, help in developing new theories based on observed patterns and themes.
• Hypothesis Testing : In quantitative research, methodologies are crucial for testing hypotheses, allowing researchers to confirm or refute their assumptions.

Synonyms of Methodology

How to write a Methodology

1. introduction.

Begin with a brief overview of the research problem and objectives. Explain why the chosen methodology is appropriate for addressing the research question.

2. Research Design

Describe the overall approach of your study:

• Qualitative , Quantitative , or Mixed Methods .
• Provide a rationale for your choice.

3. Data Collection Methods

Detail the specific methods you will use to collect data:

• Surveys : Include information about the type of survey, sample size, and how respondents are selected.
• Interviews : Describe the format (structured, semi-structured, or unstructured), and the selection process for participants.
• Observations : Explain what will be observed, the context, and how observations will be recorded.
• Experiments : Outline the experimental design, control variables, and the procedure.

4. Data Analysis Methods

Explain how you will analyze the collected data:

• Quantitative Analysis : Statistical tests, software used, and how you will ensure reliability and validity.
• Qualitative Analysis : Coding processes, thematic analysis, or other methods used to interpret data.

5. Sampling

Describe your sampling strategy:

• Population : Define the population from which your sample will be drawn.
• Sample Size : Justify the size of your sample.
• Sampling Technique : Explain whether you will use random sampling, stratified sampling, convenience sampling, etc.

6. Ethical Considerations

Detail how you will address ethical issues:

• Informed Consent : How you will obtain and document consent from participants.
• Confidentiality : Measures to protect the privacy of participants.
• Approval : Mention any institutional review board (IRB) or ethics committee approvals.

7. Limitations

Acknowledge potential limitations of your methodology:

• Discuss possible weaknesses and how they may impact your results.
• Explain steps you will take to mitigate these limitations.

8. Conclusion

Summarize the key points of your methodology. Reinforce why your chosen methods are the best fit for your research objectives.

FAQ’s

What are qualitative methods.

Qualitative methods involve non-numerical data collection, like interviews and observations, to understand concepts, opinions, or experiences.

What are quantitative methods?

Quantitative methods involve numerical data collection and statistical analysis to identify patterns, relationships, or trends.

What is a mixed-methods approach?

A mixed-methods approach combines qualitative and quantitative methods to provide a comprehensive analysis.

How do you choose a methodology?

Choosing a methodology depends on the research question, objectives, and the type of data needed.

What is a research design?

Research design is the framework that guides the collection and analysis of data, ensuring the research question is effectively addressed.

What is the difference between methodology and methods?

Methodology refers to the overall approach and rationale, while methods are specific techniques used for data collection and analysis.

What is a case study?

A case study is an in-depth examination of a particular instance, event, or individual to explore or illustrate broader principles.

What is an experiment in research?

An experiment involves manipulating variables to determine their effect on other variables, establishing cause-and-effect relationships.

What is a survey?

A survey is a data collection method using questionnaires or interviews to gather information from a large group.

What is sampling in research?

Sampling is selecting a subset of a population to represent the whole, ensuring the study’s findings are generalizable.

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Principles of Social Research Methodology

• © 2022
• M. Rezaul Islam 0 ,
• Niaz Ahmed Khan 1 ,
• Rajendra Baikady 2

Centre for Family and Child Studies, Research Institute of Humanities and Social Sciences, University of Sharjah, Sharjah, United Arab Emirates

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Department of Development Studies, University of Dhaka, Dhaka, Bangladesh

Department of social work, school of humanities, university of johannesburg, johannesburg, south africa.

• Emphasizes the essentials and fundamentals of research methodologies
• Covers the entire research process, beginning with the conception of the research problem
• Combines theory and practical application to familiarize the reader with the logic of research design

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About this book

This book is a definitive, comprehensive understanding to social science research methodology. It covers both qualitative and quantitative approaches. The book covers the entire research process, beginning with the conception of the research problem to publication of findings. The text combines theory and practical application to familiarize the reader with the logic of research design, the logic and techniques of data analysis, and the fundamentals and implications of various data collection techniques. Organized in seven sections and easy to read chapters, the text emphasizes the importance of clearly defined research questions and well-constructed practical explanations and illustrations. A key contribution to the methodology literature, the book is an authoritative resource for policymakers, practitioners, graduate and advanced research students, and educators in all social science disciplines.

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Introduction

The potential of working hypotheses for deductive exploratory research

Research Design and Methodology

• Social Science Research
• Social Research Methods
• Qualitative Research
• Quantitative Research
• Mixed Method Research
• Research Design

Table of contents (35 chapters)

Front matter, introduction to social research, inquiry: a fundamental concept for scientific investigation.

M. Rezaul Islam

Research: Meaning and Purpose

• Kazi Abusaleh, Akib Bin Anwar

Social Research: Definitions, Types, Nature, and Characteristics

• Kanamik Kani Khan, Md. Mohsin Reza

Theory in Social Research

• Mumtaz Ali, Maya Khemlani David, Kuang Ching Hei

Philosophy of Social Science and Research Paradigms

Inductive and/or deductive research designs.

• Md. Shahidul Haque
• Premalatha Karupiah

Critical Theory in Social Research: A Theoretical and Methodological Outlook

• Ashek Mahmud, Farhana Zaman

Narrative Inquiry, Phenomenology, and Grounded Theory in Qualitative Research

• Rabiul Islam, Md. Sayeed Akhter
• Md. Rafiqul Islam

Quantitative Research Approach

Designing research proposal in quantitative approach.

• Md. Rezaul Karim

Experimental Method

• Syed Tanveer Rahman, Md. Rabiul Islam

Social Survey Method

• Isahaque Ali, Azlinda Azman, Shahid Mallick, Tahmina Sultana, Zulkarnain A. Hatta

Survey Questionnaire

• Shofiqur Rahman Chowdhury, Mohammad Ali Oakkas, Faisal Ahmmed

Interview Method

• Hazreena Hussein

Sampling Techniques for Quantitative Research

• Moniruzzaman Sarker, Mohammed Abdulmalek AL-Muaalemi

Data Analysis Techniques for Quantitative Study

Editors and affiliations.

Niaz Ahmed Khan

Rajendra Baikady

About the editors

Bibliographic information.

Book Title : Principles of Social Research Methodology

Editors : M. Rezaul Islam, Niaz Ahmed Khan, Rajendra Baikady

DOI : https://doi.org/10.1007/978-981-19-5441-2

Publisher : Springer Singapore

eBook Packages : Social Sciences

Copyright Information : The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022

Hardcover ISBN : 978-981-19-5219-7 Published: 27 October 2022

Softcover ISBN : 978-981-19-5524-2 Published: 28 October 2023

eBook ISBN : 978-981-19-5441-2 Published: 26 October 2022

Edition Number : 1

Number of Pages : XXXI, 508

Number of Illustrations : 24 b/w illustrations, 45 illustrations in colour

Topics : Social Work , Education, general

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Scientists in Japan Give Robots a Fleshy Face and a Smile

Researchers at the University of Tokyo published findings on a method of attaching artificial skin to robot faces to protect machinery and mimic human expressiveness.

By Emily Schmall

Engineers in Japan are trying to get robots to imitate that particularly human expression — the smile.

They have created a face mask from human skin cells and attached it to robots with a novel technique that conceals the binding and is flexible enough to turn down into a grimace or up into a squishy smile.

The effect is something between Hannibal Lecter’s terrifying mask and the Claymation figure Gumby.

But scientists say the prototypes pave the way for more sophisticated robots, with an outward layer both elastic and durable enough to protect the machine while making it appear more human.

Beyond expressiveness, the “skin equivalent,” as the researchers call it, which is made from living skin cells in a lab, can scar and burn and also self-heal, according to a study published June 25 in the journal Cell Reports Physical Science.

“Human-like faces and expressions improve communication and empathy in human-robot interactions, making robots more effective in health care, service and companionship roles,” Shoji Takeuchi, a professor at the University of Tokyo and the study’s lead researcher, said in an email.

The research comes as robots are becoming more ubiquitous on factory floors.

There were 3.9 million industrial robots working on auto and electronics assembly lines and other work settings in 2022, according to the International Federation of Robotics.

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Human Subjects Office

Medical terms in lay language.

Please use these descriptions in place of medical jargon in consent documents, recruitment materials and other study documents. Note: These terms are not the only acceptable plain language alternatives for these vocabulary words.

This glossary of terms is derived from a list copyrighted by the University of Kentucky, Office of Research Integrity (1990).

For clinical research-specific definitions, see also the Clinical Research Glossary developed by the Multi-Regional Clinical Trials (MRCT) Center of Brigham and Women’s Hospital and Harvard  and the Clinical Data Interchange Standards Consortium (CDISC) .

Alternative Lay Language for Medical Terms for use in Informed Consent Documents

A   B   C   D   E   F   G   H   I  J  K   L   M   N   O   P   Q   R   S   T   U   V   W  X  Y  Z

ABDOMEN/ABDOMINAL body cavity below diaphragm that contains stomach, intestines, liver and other organs ABSORB take up fluids, take in ACIDOSIS condition when blood contains more acid than normal ACUITY clearness, keenness, esp. of vision and airways ACUTE new, recent, sudden, urgent ADENOPATHY swollen lymph nodes (glands) ADJUVANT helpful, assisting, aiding, supportive ADJUVANT TREATMENT added treatment (usually to a standard treatment) ANTIBIOTIC drug that kills bacteria and other germs ANTIMICROBIAL drug that kills bacteria and other germs ANTIRETROVIRAL drug that works against the growth of certain viruses ADVERSE EFFECT side effect, bad reaction, unwanted response ALLERGIC REACTION rash, hives, swelling, trouble breathing AMBULATE/AMBULATION/AMBULATORY walk, able to walk ANAPHYLAXIS serious, potentially life-threatening allergic reaction ANEMIA decreased red blood cells; low red cell blood count ANESTHETIC a drug or agent used to decrease the feeling of pain, or eliminate the feeling of pain by putting you to sleep ANGINA pain resulting from not enough blood flowing to the heart ANGINA PECTORIS pain resulting from not enough blood flowing to the heart ANOREXIA disorder in which person will not eat; lack of appetite ANTECUBITAL related to the inner side of the forearm ANTIBODY protein made in the body in response to foreign substance ANTICONVULSANT drug used to prevent seizures ANTILIPEMIC a drug that lowers fat levels in the blood ANTITUSSIVE a drug used to relieve coughing ARRHYTHMIA abnormal heartbeat; any change from the normal heartbeat ASPIRATION fluid entering the lungs, such as after vomiting ASSAY lab test ASSESS to learn about, measure, evaluate, look at ASTHMA lung disease associated with tightening of air passages, making breathing difficult ASYMPTOMATIC without symptoms AXILLA armpit

BENIGN not malignant, without serious consequences BID twice a day BINDING/BOUND carried by, to make stick together, transported BIOAVAILABILITY the extent to which a drug or other substance becomes available to the body BLOOD PROFILE series of blood tests BOLUS a large amount given all at once BONE MASS the amount of calcium and other minerals in a given amount of bone BRADYARRHYTHMIAS slow, irregular heartbeats BRADYCARDIA slow heartbeat BRONCHOSPASM breathing distress caused by narrowing of the airways

CARCINOGENIC cancer-causing CARCINOMA type of cancer CARDIAC related to the heart CARDIOVERSION return to normal heartbeat by electric shock CATHETER a tube for withdrawing or giving fluids CATHETER a tube placed near the spinal cord and used for anesthesia (indwelling epidural) during surgery CENTRAL NERVOUS SYSTEM (CNS) brain and spinal cord CEREBRAL TRAUMA damage to the brain CESSATION stopping CHD coronary heart disease CHEMOTHERAPY treatment of disease, usually cancer, by chemical agents CHRONIC continuing for a long time, ongoing CLINICAL pertaining to medical care CLINICAL TRIAL an experiment involving human subjects COMA unconscious state COMPLETE RESPONSE total disappearance of disease CONGENITAL present before birth CONJUNCTIVITIS redness and irritation of the thin membrane that covers the eye CONSOLIDATION PHASE treatment phase intended to make a remission permanent (follows induction phase) CONTROLLED TRIAL research study in which the experimental treatment or procedure is compared to a standard (control) treatment or procedure COOPERATIVE GROUP association of multiple institutions to perform clinical trials CORONARY related to the blood vessels that supply the heart, or to the heart itself CT SCAN (CAT) computerized series of x-rays (computerized tomography) CULTURE test for infection, or for organisms that could cause infection CUMULATIVE added together from the beginning CUTANEOUS relating to the skin CVA stroke (cerebrovascular accident)

DERMATOLOGIC pertaining to the skin DIASTOLIC lower number in a blood pressure reading DISTAL toward the end, away from the center of the body DIURETIC "water pill" or drug that causes increase in urination DOPPLER device using sound waves to diagnose or test DOUBLE BLIND study in which neither investigators nor subjects know what drug or treatment the subject is receiving DYSFUNCTION state of improper function DYSPLASIA abnormal cells

ECHOCARDIOGRAM sound wave test of the heart EDEMA excess fluid collecting in tissue EEG electric brain wave tracing (electroencephalogram) EFFICACY effectiveness ELECTROCARDIOGRAM electrical tracing of the heartbeat (ECG or EKG) ELECTROLYTE IMBALANCE an imbalance of minerals in the blood EMESIS vomiting EMPIRIC based on experience ENDOSCOPIC EXAMINATION viewing an  internal part of the body with a lighted tube  ENTERAL by way of the intestines EPIDURAL outside the spinal cord ERADICATE get rid of (such as disease) Page 2 of 7 EVALUATED, ASSESSED examined for a medical condition EXPEDITED REVIEW rapid review of a protocol by the IRB Chair without full committee approval, permitted with certain low-risk research studies EXTERNAL outside the body EXTRAVASATE to leak outside of a planned area, such as out of a blood vessel

FDA U.S. Food and Drug Administration, the branch of federal government that approves new drugs FIBROUS having many fibers, such as scar tissue FIBRILLATION irregular beat of the heart or other muscle

GENERAL ANESTHESIA pain prevention by giving drugs to cause loss of consciousness, as during surgery GESTATIONAL pertaining to pregnancy

HEMATOCRIT amount of red blood cells in the blood HEMATOMA a bruise, a black and blue mark HEMODYNAMIC MEASURING blood flow HEMOLYSIS breakdown in red blood cells HEPARIN LOCK needle placed in the arm with blood thinner to keep the blood from clotting HEPATOMA cancer or tumor of the liver HERITABLE DISEASE can be transmitted to one’s offspring, resulting in damage to future children HISTOPATHOLOGIC pertaining to the disease status of body tissues or cells HOLTER MONITOR a portable machine for recording heart beats HYPERCALCEMIA high blood calcium level HYPERKALEMIA high blood potassium level HYPERNATREMIA high blood sodium level HYPERTENSION high blood pressure HYPOCALCEMIA low blood calcium level HYPOKALEMIA low blood potassium level HYPONATREMIA low blood sodium level HYPOTENSION low blood pressure HYPOXEMIA a decrease of oxygen in the blood HYPOXIA a decrease of oxygen reaching body tissues HYSTERECTOMY surgical removal of the uterus, ovaries (female sex glands), or both uterus and ovaries

IATROGENIC caused by a physician or by treatment IDE investigational device exemption, the license to test an unapproved new medical device IDIOPATHIC of unknown cause IMMUNITY defense against, protection from IMMUNOGLOBIN a protein that makes antibodies IMMUNOSUPPRESSIVE drug which works against the body's immune (protective) response, often used in transplantation and diseases caused by immune system malfunction IMMUNOTHERAPY giving of drugs to help the body's immune (protective) system; usually used to destroy cancer cells IMPAIRED FUNCTION abnormal function IMPLANTED placed in the body IND investigational new drug, the license to test an unapproved new drug INDUCTION PHASE beginning phase or stage of a treatment INDURATION hardening INDWELLING remaining in a given location, such as a catheter INFARCT death of tissue due to lack of blood supply INFECTIOUS DISEASE transmitted from one person to the next INFLAMMATION swelling that is generally painful, red, and warm INFUSION slow injection of a substance into the body, usually into the blood by means of a catheter INGESTION eating; taking by mouth INTERFERON drug which acts against viruses; antiviral agent INTERMITTENT occurring (regularly or irregularly) between two time points; repeatedly stopping, then starting again INTERNAL within the body INTERIOR inside of the body INTRAMUSCULAR into the muscle; within the muscle INTRAPERITONEAL into the abdominal cavity INTRATHECAL into the spinal fluid INTRAVENOUS (IV) through the vein INTRAVESICAL in the bladder INTUBATE the placement of a tube into the airway INVASIVE PROCEDURE puncturing, opening, or cutting the skin INVESTIGATIONAL NEW DRUG (IND) a new drug that has not been approved by the FDA INVESTIGATIONAL METHOD a treatment method which has not been proven to be beneficial or has not been accepted as standard care ISCHEMIA decreased oxygen in a tissue (usually because of decreased blood flow)

LAPAROTOMY surgical procedure in which an incision is made in the abdominal wall to enable a doctor to look at the organs inside LESION wound or injury; a diseased patch of skin LETHARGY sleepiness, tiredness LEUKOPENIA low white blood cell count LIPID fat LIPID CONTENT fat content in the blood LIPID PROFILE (PANEL) fat and cholesterol levels in the blood LOCAL ANESTHESIA creation of insensitivity to pain in a small, local area of the body, usually by injection of numbing drugs LOCALIZED restricted to one area, limited to one area LUMEN the cavity of an organ or tube (e.g., blood vessel) LYMPHANGIOGRAPHY an x-ray of the lymph nodes or tissues after injecting dye into lymph vessels (e.g., in feet) LYMPHOCYTE a type of white blood cell important in immunity (protection) against infection LYMPHOMA a cancer of the lymph nodes (or tissues)

MALAISE a vague feeling of bodily discomfort, feeling badly MALFUNCTION condition in which something is not functioning properly MALIGNANCY cancer or other progressively enlarging and spreading tumor, usually fatal if not successfully treated MEDULLABLASTOMA a type of brain tumor MEGALOBLASTOSIS change in red blood cells METABOLIZE process of breaking down substances in the cells to obtain energy METASTASIS spread of cancer cells from one part of the body to another METRONIDAZOLE drug used to treat infections caused by parasites (invading organisms that take up living in the body) or other causes of anaerobic infection (not requiring oxygen to survive) MI myocardial infarction, heart attack MINIMAL slight MINIMIZE reduce as much as possible Page 4 of 7 MONITOR check on; keep track of; watch carefully MOBILITY ease of movement MORBIDITY undesired result or complication MORTALITY death MOTILITY the ability to move MRI magnetic resonance imaging, diagnostic pictures of the inside of the body, created using magnetic rather than x-ray energy MUCOSA, MUCOUS MEMBRANE moist lining of digestive, respiratory, reproductive, and urinary tracts MYALGIA muscle aches MYOCARDIAL pertaining to the heart muscle MYOCARDIAL INFARCTION heart attack

NASOGASTRIC TUBE placed in the nose, reaching to the stomach NCI the National Cancer Institute NECROSIS death of tissue NEOPLASIA/NEOPLASM tumor, may be benign or malignant NEUROBLASTOMA a cancer of nerve tissue NEUROLOGICAL pertaining to the nervous system NEUTROPENIA decrease in the main part of the white blood cells NIH the National Institutes of Health NONINVASIVE not breaking, cutting, or entering the skin NOSOCOMIAL acquired in the hospital

OCCLUSION closing; blockage; obstruction ONCOLOGY the study of tumors or cancer OPHTHALMIC pertaining to the eye OPTIMAL best, most favorable or desirable ORAL ADMINISTRATION by mouth ORTHOPEDIC pertaining to the bones OSTEOPETROSIS rare bone disorder characterized by dense bone OSTEOPOROSIS softening of the bones OVARIES female sex glands

PARENTERAL given by injection PATENCY condition of being open PATHOGENESIS development of a disease or unhealthy condition PERCUTANEOUS through the skin PERIPHERAL not central PER OS (PO) by mouth PHARMACOKINETICS the study of the way the body absorbs, distributes, and gets rid of a drug PHASE I first phase of study of a new drug in humans to determine action, safety, and proper dosing PHASE II second phase of study of a new drug in humans, intended to gather information about safety and effectiveness of the drug for certain uses PHASE III large-scale studies to confirm and expand information on safety and effectiveness of new drug for certain uses, and to study common side effects PHASE IV studies done after the drug is approved by the FDA, especially to compare it to standard care or to try it for new uses PHLEBITIS irritation or inflammation of the vein PLACEBO an inactive substance; a pill/liquid that contains no medicine PLACEBO EFFECT improvement seen with giving subjects a placebo, though it contains no active drug/treatment PLATELETS small particles in the blood that help with clotting POTENTIAL possible POTENTIATE increase or multiply the effect of a drug or toxin (poison) by giving another drug or toxin at the same time (sometimes an unintentional result) POTENTIATOR an agent that helps another agent work better PRENATAL before birth PROPHYLAXIS a drug given to prevent disease or infection PER OS (PO) by mouth PRN as needed PROGNOSIS outlook, probable outcomes PRONE lying on the stomach PROSPECTIVE STUDY following patients forward in time PROSTHESIS artificial part, most often limbs, such as arms or legs PROTOCOL plan of study PROXIMAL closer to the center of the body, away from the end PULMONARY pertaining to the lungs

QD every day; daily QID four times a day

RADIATION THERAPY x-ray or cobalt treatment RANDOM by chance (like the flip of a coin) RANDOMIZATION chance selection RBC red blood cell RECOMBINANT formation of new combinations of genes RECONSTITUTION putting back together the original parts or elements RECUR happen again REFRACTORY not responding to treatment REGENERATION re-growth of a structure or of lost tissue REGIMEN pattern of giving treatment RELAPSE the return of a disease REMISSION disappearance of evidence of cancer or other disease RENAL pertaining to the kidneys REPLICABLE possible to duplicate RESECT remove or cut out surgically RETROSPECTIVE STUDY looking back over past experience

SARCOMA a type of cancer SEDATIVE a drug to calm or make less anxious SEMINOMA a type of testicular cancer (found in the male sex glands) SEQUENTIALLY in a row, in order SOMNOLENCE sleepiness SPIROMETER an instrument to measure the amount of air taken into and exhaled from the lungs STAGING an evaluation of the extent of the disease STANDARD OF CARE a treatment plan that the majority of the medical community would accept as appropriate STENOSIS narrowing of a duct, tube, or one of the blood vessels in the heart STOMATITIS mouth sores, inflammation of the mouth STRATIFY arrange in groups for analysis of results (e.g., stratify by age, sex, etc.) STUPOR stunned state in which it is difficult to get a response or the attention of the subject SUBCLAVIAN under the collarbone SUBCUTANEOUS under the skin SUPINE lying on the back SUPPORTIVE CARE general medical care aimed at symptoms, not intended to improve or cure underlying disease SYMPTOMATIC having symptoms SYNDROME a condition characterized by a set of symptoms SYSTOLIC top number in blood pressure; pressure during active contraction of the heart

TERATOGENIC capable of causing malformations in a fetus (developing baby still inside the mother’s body) TESTES/TESTICLES male sex glands THROMBOSIS clotting THROMBUS blood clot TID three times a day TITRATION a method for deciding on the strength of a drug or solution; gradually increasing the dose T-LYMPHOCYTES type of white blood cells TOPICAL on the surface TOPICAL ANESTHETIC applied to a certain area of the skin and reducing pain only in the area to which applied TOXICITY side effects or undesirable effects of a drug or treatment TRANSDERMAL through the skin TRANSIENTLY temporarily TRAUMA injury; wound TREADMILL walking machine used to test heart function

UPTAKE absorbing and taking in of a substance by living tissue

VALVULOPLASTY plastic repair of a valve, especially a heart valve VARICES enlarged veins VASOSPASM narrowing of the blood vessels VECTOR a carrier that can transmit disease-causing microorganisms (germs and viruses) VENIPUNCTURE needle stick, blood draw, entering the skin with a needle VERTICAL TRANSMISSION spread of disease

WBC white blood cell

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Methodology

• What Is Qualitative Research? | Methods & Examples

What Is Qualitative Research? | Methods & Examples

Published on June 19, 2020 by Pritha Bhandari . Revised on June 22, 2023.

Qualitative research involves collecting and analyzing non-numerical data (e.g., text, video, or audio) to understand concepts, opinions, or experiences. It can be used to gather in-depth insights into a problem or generate new ideas for research.

Qualitative research is the opposite of quantitative research , which involves collecting and analyzing numerical data for statistical analysis.

Qualitative research is commonly used in the humanities and social sciences, in subjects such as anthropology, sociology, education, health sciences, history, etc.

• How does social media shape body image in teenagers?
• How do children and adults interpret healthy eating in the UK?
• What factors influence employee retention in a large organization?
• How is anxiety experienced around the world?
• How can teachers integrate social issues into science curriculums?

Table of contents

Approaches to qualitative research, qualitative research methods, qualitative data analysis, advantages of qualitative research, disadvantages of qualitative research, other interesting articles, frequently asked questions about qualitative research.

Qualitative research is used to understand how people experience the world. While there are many approaches to qualitative research, they tend to be flexible and focus on retaining rich meaning when interpreting data.

Common approaches include grounded theory, ethnography , action research , phenomenological research, and narrative research. They share some similarities, but emphasize different aims and perspectives.

Note that qualitative research is at risk for certain research biases including the Hawthorne effect , observer bias , recall bias , and social desirability bias . While not always totally avoidable, awareness of potential biases as you collect and analyze your data can prevent them from impacting your work too much.

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Each of the research approaches involve using one or more data collection methods . These are some of the most common qualitative methods:

• Observations: recording what you have seen, heard, or encountered in detailed field notes.
• Interviews:  personally asking people questions in one-on-one conversations.
• Focus groups: asking questions and generating discussion among a group of people.
• Surveys : distributing questionnaires with open-ended questions.
• Secondary research: collecting existing data in the form of texts, images, audio or video recordings, etc.
• You take field notes with observations and reflect on your own experiences of the company culture.
• You distribute open-ended surveys to employees across all the company’s offices by email to find out if the culture varies across locations.
• You conduct in-depth interviews with employees in your office to learn about their experiences and perspectives in greater detail.

Qualitative researchers often consider themselves “instruments” in research because all observations, interpretations and analyses are filtered through their own personal lens.

For this reason, when writing up your methodology for qualitative research, it’s important to reflect on your approach and to thoroughly explain the choices you made in collecting and analyzing the data.

Qualitative data can take the form of texts, photos, videos and audio. For example, you might be working with interview transcripts, survey responses, fieldnotes, or recordings from natural settings.

Most types of qualitative data analysis share the same five steps:

• Prepare and organize your data. This may mean transcribing interviews or typing up fieldnotes.
• Review and explore your data. Examine the data for patterns or repeated ideas that emerge.
• Develop a data coding system. Based on your initial ideas, establish a set of codes that you can apply to categorize your data.
• Assign codes to the data. For example, in qualitative survey analysis, this may mean going through each participant’s responses and tagging them with codes in a spreadsheet. As you go through your data, you can create new codes to add to your system if necessary.
• Identify recurring themes. Link codes together into cohesive, overarching themes.

There are several specific approaches to analyzing qualitative data. Although these methods share similar processes, they emphasize different concepts.

Qualitative research often tries to preserve the voice and perspective of participants and can be adjusted as new research questions arise. Qualitative research is good for:

• Flexibility

The data collection and analysis process can be adapted as new ideas or patterns emerge. They are not rigidly decided beforehand.

• Natural settings

Data collection occurs in real-world contexts or in naturalistic ways.

• Meaningful insights

Detailed descriptions of people’s experiences, feelings and perceptions can be used in designing, testing or improving systems or products.

• Generation of new ideas

Open-ended responses mean that researchers can uncover novel problems or opportunities that they wouldn’t have thought of otherwise.

Researchers must consider practical and theoretical limitations in analyzing and interpreting their data. Qualitative research suffers from:

• Unreliability

The real-world setting often makes qualitative research unreliable because of uncontrolled factors that affect the data.

• Subjectivity

Due to the researcher’s primary role in analyzing and interpreting data, qualitative research cannot be replicated . The researcher decides what is important and what is irrelevant in data analysis, so interpretations of the same data can vary greatly.

• Limited generalizability

Small samples are often used to gather detailed data about specific contexts. Despite rigorous analysis procedures, it is difficult to draw generalizable conclusions because the data may be biased and unrepresentative of the wider population .

• Labor-intensive

Although software can be used to manage and record large amounts of text, data analysis often has to be checked or performed manually.

If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.

• Chi square goodness of fit test
• Degrees of freedom
• Null hypothesis
• Discourse analysis
• Control groups
• Mixed methods research
• Non-probability sampling
• Quantitative research
• Inclusion and exclusion criteria

Research bias

• Rosenthal effect
• Implicit bias
• Cognitive bias
• Selection bias
• Negativity bias
• Status quo bias

Quantitative research deals with numbers and statistics, while qualitative research deals with words and meanings.

Quantitative methods allow you to systematically measure variables and test hypotheses . Qualitative methods allow you to explore concepts and experiences in more detail.

There are five common approaches to qualitative research :

• Grounded theory involves collecting data in order to develop new theories.
• Ethnography involves immersing yourself in a group or organization to understand its culture.
• Narrative research involves interpreting stories to understand how people make sense of their experiences and perceptions.
• Phenomenological research involves investigating phenomena through people’s lived experiences.
• Action research links theory and practice in several cycles to drive innovative changes.

Data collection is the systematic process by which observations or measurements are gathered in research. It is used in many different contexts by academics, governments, businesses, and other organizations.

There are various approaches to qualitative data analysis , but they all share five steps in common:

• Prepare and organize your data.
• Review and explore your data.
• Develop a data coding system.
• Assign codes to the data.
• Identify recurring themes.

The specifics of each step depend on the focus of the analysis. Some common approaches include textual analysis , thematic analysis , and discourse analysis .

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Novel surgery meets bionics in breakthrough for limb amputation

CAMBRIDGE, Massachusetts ‒ Leg amputations haven't changed much in a very long time.

Civil War-era textbooks describing them look pretty similar to contemporary ones, said Dr. Matthew Carty, a staff surgeon at Brigham and Women's Hospital in Boston. "You could even dial it back as far as 2,000 years ago," he said, and the standard approach to limb amputation wouldn't be "all that different."

But in recent years, a small number of surgeons, including Carty, have been trying to find better methods.

Collaborating with Hugh Herr, an MIT technologist and double-amputee, Carty developed a new surgical approach, linking pairs of muscles involved in flexing and turning the ankle.

Now, the two have a new paper, published Monday in the journal Nature Medicine , showing their success with seven patients. All had both the surgery, called AMI (for antagonist myoneural interface) and a bionic prosthetic.

The combination, the study shows, allows the seven to walk naturally, at a normal pace, even up stairs and on uneven surfaces, as if the legs were their own.

Amy Pietrafitta, 47, of Plymouth, Massachusetts, was one of the seven.

"This gives me so much mobility, I love it," said Pietrafitta, a para athlete who runs marathons, dances, is a member of The Boston I.C.E. Storm sled hockey team and will compete in the 2024 World Coastal Rowing Championships in Italy in September.

But she was only able to use the bionic lower leg in Herr's MIT lab at the K. Lisa Yang Center for Bionics. Now she's back to her regular prosthetic.

"It did make me a little teary eyed," she said of leaving the bionic leg behind. "It's slightly heart-breaking."

A different way to amputate

In the AMI surgery, muscles typically involved in flexing and extending the ankle are linked, as are those involved in inverting and turning out the ankle.

About 60 patients worldwide have received the amputation procedure since the pair developed it about a decade ago, Carty said.

The surgery takes about twice as long as a typical amputation ‒ about 3 hours as opposed to 90 minutes ‒ but isn't much more technically complicated, he told USA TODAY. It doesn't need to be done at an academic medical center. Any modern hospital is good enough, he said.

"Our hope is this or something like this becomes the standard way of doing amputations around the world," Carty said.

The AMI can also be done after an amputation ‒ even years later ‒ as a revision surgery, as long as the needed muscles haven't atrophied.

Herr, who had his own amputation surgery in 1982 after a climbing accident, said he is interested in getting an AMI procedure himself, though only one of the two muscle pairs remains functional.

Bionic limbs

Movements with the bionic limb are much more natural thanks to the AMI, Pietrafitta and Herr said.

With a regular prosthetic, "your foot fights you back," Pietrafitta told USA TODAY. She's adapted to the pushing she gets from her passive prosthetic, but the bionic one felt much more like a part of her.

She was able to go on point dancing ballet and stay up even longer on the bionic foot than her natural one. "That was amazing. That brought tears to my eyes as well," she said.

Today's most advanced prosthetics typically use electronics to move a synthetic ankle, propelling the person forward. The person essentially has to respond to the signals from their prosthetic.

By contrast, the device Herr developed includes electrodes placed on the skin above the point of amputation, outside the muscles paired by the surgery, and is responsive to them. When the muscle normally involved in lifting the ankle contracts, the prosthetic ankle lifts up, when its opposite muscle contracts, the ankle flexes.

Connecting to the person's own muscles also allows them to sense where their prosthetic limb is in space in a way that is not possible with standard surgery and devices, Herr, Carty and Pietrafitta said.

Eventually, Herr said, he hopes to replace surface electrodes with implanted small magnetic spheres that can more accurately track the movements of the muscle pairings with higher fidelity to better control the prosthesis.

The combination of the AMI surgery with the bionics is particularly powerful, said Dr. Benjamin "Kyle" Potter, who was not involved in the study, but who does similar research and is the incoming chairman of the department of orthopedic surgery at Penn Medicine in Philadelphia.

"The magic here is really in the surgery," said Potter, who recently left the Walter Reed National Military Medical Center after 23 years. "What they've demonstrated here is that, although customized, a relatively simple bionic limb can help the patients walk better."

The research proves that natural walking won't require $1 million worth of technology, Potter said. "The synergy of the novel surgery with a prosthesis that can harness that power is probably the real breakthrough here."

The best thing about the surgery, Carty said, is that it enables amputees to take full advantage of available technological advances.

"Longer term, as this experimental technology moves from the lab hopefully to the commercial realm, they will have access to technology that they will be albe to use better than a standard amputee can," Carty said. Herr expects it will take about five years for the bionic limb to become commercially available.

A long, painful journey with a happy ending

Pietrafitta was injured on June 9, 2014, when superheated water fell on her at her job as a restaurant server. She was burned over a quarter of her body, including her torso and left leg.

She had skin grafts and surgeries to reconstruct her damaged leg but was left with something called complex regional pain syndrome.

On a 50-point scale, complex regional pain syndrome is said to register at about a 42 , higher than pregnancy and double the pain of a toothache. "It's called the suicide disease because you can't live in that kind of pain forever," Pietrafitta said.

Her doctor eventually determined said she needed an amputation because her injured leg was no longer functional, but her insurance company kept turning her down for the surgery, saying her pain syndrome made her a poor candidate. For more than two-and-a-half years, she and her doctors fought with the insurance company before a judge finally allowed Carty to give her the AMI amputation on Feb. 27, 2018.

Before the surgery, she took multiple oxycontin, diazepine, clonidine and zoloft every day to cope with the pain. She hasn't needed any since her recovery. "It's been amazing. I have no pain at all," she said. "From one extreme to the other."

She's able to stand in the shower again and even flip her long hair forward and back without falling. If she ever trips, it's because of her natural foot.

"I feel like I still have my limb," she said. "I know I'm an amputee, but my brain forgets in a way, because it feels like so natural."

Herr has long sought to "rebuild bodies, to give persons back after amputation their full limb restoration, where they view the synthetics not an an external tool but as part of their bodies, as self," he said in a call last week with reporters.

"This study is a critical step forward, pun intended, toward that embodiment."

Karen Weintraub can be reached at [email protected].