Bachelor's Thesis Introduction: Building Blocks and Example

The introduction of a bachelor's thesis leads into the topic, shows why the question matters, states the research question, aim and method, and explains how the thesis is structured. It is not a summary but the map that readers use to find their way through the whole thesis.

What belongs in the introduction of a bachelor's thesis?

University writing centres describe similar building blocks but name them differently. The writing centre of Ruhr University Bochum lists these typical elements: leading into the topic, deriving the research question, showing relevance, describing the object of study, naming the method, outlining the state of research, and explaining the structure. The writing centre of TU Dresden lists topic and question, relevance, justification of the question, aim and focus, structure and method. Bochum also stresses that which elements appear can vary by subject and supervisor, and that in the humanities and social sciences even the order is not fixed. If in doubt, ask your supervisor.

For a bachelor's thesis, the following order has proved useful and follows from the inner logic of the text:

1. Lead-in: You meet readers where they are, usually moving from the general to the specific.
2. Problem statement: You show what is open, unclear or disputed.
3. Research question: You state precisely what you want to answer.
4. Aim and scope: You say what the thesis is meant to achieve, and what it is not.
5. Method: You name your approach and justify it briefly.
6. Structure: You explain how each chapter contributes to the answer.

How the whole thesis comes about is covered in our article How to write a bachelor's thesis. This article is only about the introduction.

How do I lead into the topic?

The lead-in usually moves from the general to the specific. The Bochum writing centre mentions a hook as a possible opening, such as a quotation or a striking fact. It warns, however: the hook must fit the topic exactly, must not seem forced or overly original, and some instructors dislike this kind of opening. A safer route is context: what is the subject about, and why does the topic matter now?

This is also where you define key terms, without copying a dictionary: "In this thesis, employee retention is understood as …"

Example (invented, for illustration only; the original is German):

"For several years, many employees have worked from home at least part of the time. This raises the question for companies of how to maintain cohesion and commitment under changed conditions."

The paragraph names no figure. If you use numbers, you must cite them; invented statistics do not belong in an introduction.

How do I formulate the problem and the research question?

The Bochum writing centre describes a common derivation scheme: first the research context is presented ("X has already been studied in many respects"), then a research gap is named ("So far, … has been insufficiently clarified"), and finally it is explained how the gap is to be filled, for example through a research question.

The research question can be phrased as an indirect question, as a thesis statement, or as a research aim. Bochum names all three forms. What matters is that it is concrete enough for you to say at the end whether and how you answered it.

Example (invented):

"The literature mainly describes effects on productivity; less attention has been paid so far to how employees in small and medium-sized companies experience their commitment to their employer. This thesis therefore examines to what extent the option of working from home affects the perceived commitment of employees in medium-sized companies."

Test every research question with three control questions: Can it be dismissed with a yes or no? Can it be handled within the given time and length? Does it fit the method you want to use? If any answer is poor, the question is too narrow, too broad or too vague.

How do I show relevance without exaggerating?

According to the Bochum paper, a thesis is relevant if it addresses a research gap or if its result brings a benefit to society. The paper concedes that students often cannot survey whether a gap really exists and are generally not expected to close one. You can instead explain why working on your question may be important: because the topic has received little attention so far, because it is disputed in the literature, or because it is current. According to Bochum, your personal interest is only a starting point for finding relevant aspects, not an argument.

How do I describe aim, method and structure?

The aim says what the thesis delivers: "The aim of this thesis is to examine … and to derive …". The scope covers what you deliberately leave out, such as an industry, a period or an aspect. This protects you from the accusation of having forgotten something.

For the method, the introduction names only the essentials: what do you examine (literature, data, interviews), and why does the approach suit the question? The details belong in a separate methods chapter. Even in purely literature-based theses, a short sentence about the approach is worthwhile; Bochum suggests asking yourself: what will I concretely do to work on my question?

Example (invented):

"To answer the research question, guided interviews are conducted with employees and evaluated by content analysis, because their subjective perception is the focus."

You explain the structure by justifying what each chapter contributes to the answer. The Bochum paper explicitly advises against simply listing the table of contents:

"Chapter 2 lays out the theoretical foundations on which the analysis in chapter 4 builds. Chapter 3 justifies the methodological approach. Chapter 5 discusses the results against the background of the research question."

How long should the introduction be?

There is no uniform rule, and the sources agree only roughly. The TU Dresden writing centre, in its notes for school research papers, gives about 5 to 15 percent of the total text. The Geschichte Online portal of the University of Vienna gives "no more than ten to 15 percent of the text" as an upper limit, and the introduction should normally be at least one page long. For a thesis with 40 pages of text, the Dresden range works out arithmetically to roughly 2 to 6 pages. What is binding, however, is always the requirement of your university or examination office; when in doubt, what counts is what your examination regulations or your supervisor specify.

When do I write the introduction?

The recommendations differ here as well. Dresden says in its notes for school research papers that some people find it easier to write the introduction and conclusion last, because then you know exactly what the thesis contains. The University of Vienna, by contrast, recommends starting every piece of work with the introduction, ideally based on an existing outline (Exposé). The Bochum writing centre suggests a middle path: write a kind of outline at the start to commit to a direction, and at the end revise the introduction and align it with the conclusion. This is a good compromise, because research question and structure almost always change while you write.

Which mistakes happen most often in the introduction?

The sources above and the logic of the building blocks point to typical weak spots:

• The research question is missing or vague. The question is the core; everything else serves it.
• Relevance is merely asserted. "The topic is more important than ever" proves nothing. A concrete reason from the literature is better.
• The structure section is a spelled-out table of contents. Explain instead why each chapter is necessary.
• The text anticipates results. The introduction should give orientation, not deliver the answer.
• The introduction is far too long. General background and a detailed state of research usually belong in a chapter of their own.
• Introduction and conclusion do not match. If you change the question later, you must adapt the introduction. Read it once more against the conclusion at the end.

How to prepare for critical follow-up questions afterwards is covered in Thesis defense: typical questions. More articles on study topics are in the Subjects and Topics category.

How can I practise with my own material?

If you are unsure whether your introduction really guides readers, read it aloud or have it read to you: if it stumbles, a transition is usually missing. It also helps to condense your literature notes into short summaries beforehand so that the state of research in the introduction stays precise. LearnCastAI can create summaries and practice questions from your own material. Writing the introduction remains your job, however, and you have to check the technical language, the outline and the sources yourself.

Introduction and conclusion belong together: the question you pose here is the one you answer at the end. How to do that is shown in the article on the bachelor thesis conclusion.

Conclusion

A good introduction answers four questions: What is this about? What is the problem? What do you want to find out? How will you proceed? If these answers are clear, they carry the whole thesis. The example sentences above are freely written and serve only as scaffolding; do not copy them word for word, but adapt them to your topic.