How to write chapter 3 in thesis?

In previous posts, we discussed writing chapter one and writing chapter two. In this post, we will see how to write chapter 3 in a thesis.

In empirical researches, chapter 3 is the methodology chapter of a thesis.

In chapter 3 of a thesis or dissertation, you need to write about the methods you have chosen in order to conduct the research and evaluate the variables, which is of 9 components, including:

3.1 Introduction

3.2 Participants

3.3 Instrumentation / Instruments

3.4 Design of the study

3.5 Data collection procedure

3.6 Data analysis procedure

3.7 Variables (optional)

3.8 Materials and instruments (optional)

3.9 The research site (not in all researches)

Now we are going to introduce and explain each of them one by one:

3.1 Introduction

As you may understand till now, each chapter begins with an introduction which is explaining what is going to be discussed in the chapter. Because of such content, the introduction part in each chapter will be written when the whole chapter is written.

In the introduction part of chapter 3 in a thesis or dissertation you need to talk about the questionnaires, the number of questions, validity and reliability of each one, and so on, in brief.

3.2 Participants

Explain who your participants are, as specific as you can. For example, you may include the number of samples, the method of choosing them, and so on.

3.3 Instrumentation / Instruments

In research, the variables should be evaluated; the question is that how did you evaluate them in your research. What method you have chosen to evaluate each variable; write on each variable in a separate subsection, and number it like 3.3.1, 3.3.2, and so on.

In each subsection write about the instrument you used to evaluate the variable. At first, prove that the chosen instrument is valid and reliable for your research, then explain about the instrument itself, in details. Explain things like how does it work, how the results are interpreting, what parts make it, and so on.

If the instrument you used is a questionnaire, attach them as “appendix” to the end of your thesis after “references” part.

3.4 Design of the study

A study could be of a qualitative, quantitative, or a mixed method design. Each of them is divided into different types.

After defining the design of the study, many other components of the research will be clarified, such as the type of instruments can be used in the study, the kinds of variables and research questions, the way the data should be analyzed and many other things. So it is very important to define the design of the study, it can be a base for the research.

In “Research Design” book by “Creswell” you can find more detailed information on this part.

design of the study chapter 3

3.5 Data collection procedure

Ones may decide to replicate your research, so s/he will need the procedure of the study. Hence you need to explain how you collected the data in details.

3.6 Data analysis procedure

By data analysis procedure we mean the statistical test you have used to analyze the data, such as ANOVA, T-test, etc.

3.7 Variables

This part is optional. You may write the variables of the study and their types in this part.

3.8 Materials and instruments

This is optional too. If you have used a specific instrument or material in the research, it can be mentioned in this part. Note that it differs from the Instruments part in section 3.3. and refers to specific instruments or details.

3.9 The research site

In some researches, you need to mention the city where the study has been conducted in.

Some other considerations

Note that these parts may differ in different universities, but the main idea does not change.

In some fields, such as pure science, or in some certain types of study like surveys these parts would be different.

In those kinds of majors which may not be empirical, the researcher just needs to discuss the study’s variables separately, in chapter 3. More details depend on your research and major. For example, you may write on a theory, so in chapter 3 you need to prove the accuracy of it.

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