5 Common Mistakes When Writing the Introduction to Your Bachelor’s Thesis

Your thesis introduction is finished—or at least almost? Then now is exactly the right time to take another critical look at it.

Even if you already know how to convincingly formulate the relevance, research gap, and research question, there are still some typical mistakes when writing the introduction that are easy to make.

In this article, we’ll show you the typical pitfalls when writing the introduction and how to avoid them.

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Why the introduction is so important

The introduction to your bachelor’s thesis is your readers’ first point of contact with your topic – it determines whether your research project comes across as clear and comprehensible.

A well-structured introduction to your thesis provides orientation, introduces the research question, and explains the relevance of your topic. It forms the foundation of your argument and shows which research gap you are addressing.

With clear wording and the right length, you lay the foundation for a convincing opening.

Mistake 1: Your introduction is too general or too detailed

Many students begin the introduction to their bachelor’s thesis either too generally or with too much detail.

An opening should be easy to understand but clearly focused, so that readers immediately recognize what the thesis focuses on. Finding the right balance creates a precise framework for the research question and the thesis’s argument.

  • Example of climate neutrality:
    „Climate change is a major problem” is too general.
    “On XY District Street in 2022…” is too detailed.

    Instead, you can narrow the focus, for example:
    “In many European cities, transport policy makes a significant contribution to reducing CO₂ emissions – this is particularly clear in the example of Vienna.”

Error 2: Too much prior knowledge is assumed

A common mistake in the introduction is to start directly with technical terms and complex concepts without providing the necessary context.

Many students assume too much prior knowledge, making it difficult for readers to follow the topic.

Instead, a good introduction first provides a brief overview of the topic before going into depth, creating an accessible starting point.

  • Our tip
    Don’t use terms that you don’t explain (later).
Sign showing the directions Wrong and Right – symbol for typical mistakes in the introduction to a Bachelor's thesis / Writing an Introduction

Mistake 3: The relevance of your research remains unclear

A good introduction to a Bachelor’s thesis does not only answer the question “What do I want to know?”, but also “Why should anyone care about this?”.

If you clearly explain the relevance of your research topic, your work will be more convincing, and readers will immediately understand the value of your research.

Typical ways of justifying relevance include:

  • Social: Which groups are affected? Which societal problem is being addressed?
  • Scientific: Why is it important to close this gap in the research?
  • Economic: Does the topic influence markets, companies, or consumption?
  • Example:
    Employer branding is increasingly communicated in practice as a success factor – yet whether it actually correlates with corporate profit remains empirically unclear.

Mistake 4: The research gap is not clearly presented

Without a clearly identified research gap – that is, the answer to the question “What do we still not know?” – your work lacks its central rationale.

The introduction is the right place to make this research gap clear and show readers why your study is necessary.

Mistake 5: The introduction is too long or lacks structure

A common weakness in the introduction to a Bachelor’s thesis is that it is too extensive or written without a clear structure.

In shorter theses, the introduction primarily serves to orient the reader.

In a thesis, however, it is the central place for logically substantiating your research question. So it is not a preface, but a core part of the content.

So stay focused, avoid lengthy background sections and lead the reader step by step to your research question.

  • Our tip
    For term papers, ½ to 1 page is often enough for the introduction. For Bachelor’s or Master’s theses, it can and should be longer – usually around 1.5 to 2.5 pages.

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