How to Write a Thesis Introduction Step by Step: With Real Examples (2026)

Your thesis introduction sets the tone for everything that follows. It is the first substantive chapter your examiner reads, and first impressions in academic examination are hard to reverse. Yet most students write their introduction last — and rush it, because after months of writing the main body chapters, the energy for yet another draft is in short supply.

This guide shows you exactly how to write a thesis introduction step by step — with seven concrete stages, annotated examples from real theses, and the specific elements examiners are looking for at master’s and PhD level.

Step 1: Write Your Introduction Last

The most important piece of advice for writing a thesis introduction: do not write it first. Your introduction needs to accurately describe the research you have conducted, the findings you made, and the contribution you can claim — none of which you fully know until the thesis is complete.

Many students write a “placeholder introduction” early in the process, and that is fine — it helps you clarify your initial direction. But you should plan a substantial rewrite once the rest of the thesis is drafted. The introduction you write after finishing Chapter 5 will be dramatically better than the one you wrote before starting Chapter 2.

Step 2: Establish Context and Significance

Your opening paragraphs must answer the question: why does this research exist, and why should the reader care? This is sometimes called the “inverted pyramid” or “funnel” approach — you begin with the broad context (your field, the real-world problem, the theoretical landscape) and gradually narrow to your specific study.

Good contextualisation:

• Establishes the broader significance of the research area in two to three sentences
• Uses data, statistics, or concrete observations to make the problem tangible
• Avoids sweeping statements that are too general to be informative (“In today’s society, technology is everywhere”)
• Cites key sources that establish the current state of knowledge

Step 3: Identify the Research Problem or Gap

After establishing context, you must identify the specific problem or gap that your thesis addresses. This is the transition from “the broad field” to “the specific question my research answers.” The gap statement should:

• Be specific enough to be clearly identified and bounded
• Be supported by citations to prior work (which demonstrated that the gap exists)
• Lead logically and inevitably to your research question

Common gap types include: empirical gaps (a population or context that hasn’t been studied), methodological gaps (prior studies used suboptimal methods), theoretical gaps (conflicting theories that haven’t been reconciled), and temporal gaps (studies are outdated given changed conditions). For more on identifying gaps, see our guide on choosing a thesis topic.

Step 4: State Your Research Question(s) or Aims

Your research question(s) or aims should appear clearly and unambiguously in your introduction — typically at the end of the gap identification section. This is not the place for elegant prose: state your research question directly and specifically. Examiners look for this explicitly.

Step 5: Briefly Describe Your Methodology

In the introduction, you provide a brief methodological overview — not the full methodology chapter, but enough for the examiner to understand your basic research approach. Two to four sentences is appropriate: research design, data collection method(s), and sample or data source. Justification belongs in the methodology chapter, not here.

Example: “This study employed a mixed methods approach, combining a quantitative survey of 312 programme participants with 20 in-depth qualitative interviews. Survey data were analysed using multilevel modelling to account for nesting within programmes; interview data were analysed using reflexive thematic analysis following Braun and Clarke (2022).”

Step 6: Summarise Your Key Findings

Include a two to three sentence summary of your most significant findings. This previews what the examiner will encounter and creates a narrative thread that connects your introduction to your conclusion. Do not save all findings for later chapters — examiners appreciate knowing what you found before they read 80,000 words about how you found it.

Step 7: State Your Original Contribution

For PhD-level work especially, your introduction should explicitly state your original contribution to knowledge — the one thing your thesis adds to the field that did not exist before. This is sometimes called the “contribution statement.” Examiners of doctoral theses are specifically evaluating whether a contribution has been made: make it explicit, not implicit.

Example: “This thesis makes three original contributions: first, it provides the first longitudinal evidence of arts participation effects on loneliness in this population from a UK context; second, it develops and validates a novel measure of social connectedness specifically designed for community arts settings; third, it proposes a theoretical model linking arts participation mechanisms to social connectedness outcomes that extends current theory.”

Step 8: Map Your Chapter Structure

Close your introduction with a brief chapter map — one to two sentences on each chapter explaining what it contains and how it contributes to the overall argument. This helps examiners navigate your thesis and signals that you understand the logical architecture of your work.

Example: “Chapter 2 reviews existing literature on loneliness, social connectedness, and arts participation, establishing the theoretical framework that underpins this study. Chapter 3 presents the research design and methodological justification. Chapter 4 reports the quantitative survey findings, followed by qualitative analysis in Chapter 5. Chapter 6 synthesises both strands in the discussion, and Chapter 7 draws conclusions and articulates the study’s contributions and limitations.”

Annotated Introduction Examples

The most common introduction structure failure is the “general to specific” funnel that never quite reaches the specific — the gap statement is vague, the research question is buried, and the contribution is implicit rather than explicit. Contrast this with the strong example format above, where every paragraph has a specific function and the research question appears unambiguously stated. For a deeper look at what great introductions look like section by section, see our guide to how to write a thesis introduction step by step with examples. See our detailed guide with five annotated introduction examples in our thesis introduction examples analysis.

Common Introduction Mistakes

For the full thesis writing journey, see our complete step-by-step thesis writing guide.

Frequently Asked Questions