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PhD Writing 3: How to write the introduction chapter of a thesis

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PhD Writing 3: How to write the introduction chapter of a thesis

If you find it tricky to write the introduction chapter of a PhD thesis, rest assured that you’re not alone. The introduction can be one of the hardest sections to write for any piece of research writing. However, the introduction is also one of the most important sections as it lays the groundwork for the following chapters and offers a first impression of the rest of the research that you are about to share. This article discusses some of the key things to consider as you write your introduction.

Write your introduction last

It is very common practice for most researchers to write the introduction chapter last. You might be wondering why that is, since it is the first chapter of the thesis. However, think of it in this way: you cannot introduce something until you know exactly what you are introducing.

You will have a complete overview and understanding of the entire project only when you have largely completed it and written all the other constituent parts. By writing the introduction at the end of your project, you’ll be able to look back over your initial research questions, the way you conducted the research, the results you generated and the conclusions you formed. You will then be in a better position to present and introduce the research as a whole, coherent piece of work. 

Provide an overview 

The introduction should offer the reader an overview of the research that you have conducted. You are setting the scene for your reader and giving them a broad idea of what they can expect throughout the rest of the thesis. As such, you don’t need to go into too much depth at this stage – the details can come later in the following chapters. In particular, you need to talk about what you are studying and why.

What are you studying?

The introduction is the best place to outline your working hypothesis and/or research questions. After all, this is what the rest of your thesis will entail.

Make it very clear for your reader exactly what you are setting out to investigate.

What are you trying to find out?

What are you testing?

What answers or results are you hoping to obtain by doing this study?

You might find it easier and clearer to outline your research questions as distinct bullet points. Then, you can follow this list with a more detailed discussion of each of the questions or hypotheses – for example, why you are asking each question, what you hope to find out from each question and what methods you will use to answer those questions. 

Why are you doing this research? 

Apart from giving your reader an idea of what your thesis is about, it is important to explain in the introduction why you are doing this research. Start by highlighting exactly what issue(s) you are addressing in this research, then outline why this research is important and why there is a need for this study to be conducted.

Although you shouldn’t give everything away and reveal all your findings and conclusions at the beginning of the thesis, you can begin to hint at the potential impact and implications that such a study could create, either for your specific field, or for society more generally. This will again emphasise the significance and relevance of this research. 

Offer some background

In order to effectively set the scene, you can also begin to introduce some of the most prominent work that has already been done on the subject. This chapter is a good place to contextualise your research within the broader, existing body of work. Again, you don’t need to go into great detail – that will be covered in the literature review – but it can be helpful to briefly mention some of the existing relevant work that has informed and motivated your unique study.

For example, perhaps your research responds directly to a recent scientific discovery. You can use the introduction to refer to this previous study and explain how you are addressing the limitations and problems of that study or exploring the effects of using an alternative method.

How are you conducting this research?

When you’ve introduced the reasons informing your study and explained what you will be investigating, you will then want to offer a brief explanation of how you have designed and conducted this research. Again, as you are only giving an overview at this stage, you don’t need to go into too much detail – further explanations will come later in your methods/methodology chapter.

Remember that you want to offer your reader a broad idea of what the overall research project entails. Naturally, this includes some discussion of the main approaches and directions you took in your research to adequately answer the questions that you set out to investigate.

Offer a clear chapter outline

It is a good idea to include a section within your introduction that clearly outlines what each of the proceeding chapters will include. As you write these chapter outlines, think of them as small summaries, or mini abstracts, of each chapter.

Your reader will then have a much firmer and focused idea of what is to come next, and how each chapter will connect with and links to each other. Think of the chapter outline as something like a recipe or a roadmap laying out the steps that the reader will follow. 

In conclusion

Although it can feel a bit overwhelming to have to summarise all your research into a single introductory chapter, it might help to place yourself in the position of your ideal reader or examiner.

What would you like them to know as they start reading your thesis?

What important pieces of information would they need here in order to fully appreciate and understand the rest of your paper?

Think about what you would like to see and what details you appreciate when you read introductory chapters, and try to recreate that same clarity for your reader.

 

Read next (final) in series: PhD Writing 4: How to write the conclusion chapter of your thesis

Read previous in series: PhD Writing 2: How to improve your writing skills in preparation for writing your thesis

 

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