If you have ever stared at your thesis outline and wondered whether limitations and delimitations are just two fancy words for the same thing, you are not alone. Almost every thesis writer mixes them up at least once — and examiners notice. The good news is that the difference is simple once you see it, and writing both sections well is mostly a matter of honesty plus a clear structure.
In this guide, you will learn exactly what limitations and delimitations mean, how they differ, and how to write each one with examples you can adapt to your own study.
What Are Limitations?
Limitations are the weaknesses, constraints, or shortcomings of your study that are outside your control as a researcher. They are the things that could affect your results but that you could not reasonably change, given your time, resources, or circumstances.
Think of limitations as the “despite my best efforts” section. You did not choose them — they happened to your study.
Common examples of limitations include:
- A small sample size because only a limited number of participants were available
- Data collected through self-report questionnaires, which can be affected by social desirability bias
- A study conducted in one city or one institution, which limits how far the findings can be generalized
- Time constraints that prevented a longer follow-up period
- Unexpected events during data collection, such as low response rates or participant dropout
The key test is this: if you could not have realistically avoided it, it is a limitation.
What Are Delimitations?
Delimitations are the boundaries you deliberately set for your study. They are the choices you made about what your study will and will not cover — its scope, its population, its variables, and its methods.
Think of delimitations as the “I decided” section. You chose them on purpose to keep your study focused and manageable.
Common examples of delimitations include:
- Choosing to study only undergraduate students rather than all university students
- Focusing on one city, province, or country
- Examining only one variable, such as job satisfaction, rather than all aspects of employee well-being
- Limiting the study to a specific time period, such as the last five years
- Using only a quantitative survey rather than adding interviews
The key test is this: if you chose it yourself to define the scope of your study, it is a delimitation.
Limitations vs Delimitations: The Key Differences
| Feature | Limitations | Delimitations |
|---|---|---|
| Who controls them? | Outside the researcher’s control | Set by the researcher on purpose |
| Nature | Weaknesses or constraints | Boundaries or scope decisions |
| Effect on the study | May weaken the results or their generalizability | Define what the study covers — and what it does not |
| Example | Small sample size due to low response rate | Studying only public schools, not private ones |
| Examiner’s question | “What went wrong or could not be helped?” | “Why did you draw the line here?” |
A simple memory trick: limitations limit you; delimitations are lines you draw yourself. The word “delimitation” contains “delimit” — to set limits deliberately.
Examples: Limitations and Delimitations in a Real Study
Imagine a study titled “The Effect of Online Learning on Undergraduate Academic Performance in Lahore.”
Delimitations (the researcher’s choices):
- The study is limited to undergraduate students at three public universities in Lahore.
- Only students enrolled in the 2024–2025 academic year are included.
- The study measures academic performance through semester GPA only, not through practical skills or employability.
Limitations (factors beyond the researcher’s control):
- The response rate was 62%, so students who did not respond may differ from those who did.
- Academic performance was measured by self-reported GPA, which some students may have overstated.
- Data were collected during exam season, which may have affected students’ responses about their learning experience.
Notice how each delimitation is a decision the researcher can justify, while each limitation is a constraint the researcher must honestly acknowledge.
How to Write the Limitations Section
Examiners respect an honest limitations section far more than a study that pretends to be perfect. Follow these steps:
- Be specific, not vague. Do not write “this study has some limitations.” Name each one precisely: which sample, which method, which time frame.
- Explain why each limitation exists. A limitation without a reason reads like an excuse. One sentence of context is enough — for example, “Because the study was conducted in a single institution, the findings may not apply to institutions in rural areas.”
- Explain the possible effect on your results. For each limitation, briefly say how it might have influenced your findings. Did it reduce generalizability? Could it have introduced bias? Say so plainly.
- Suggest how future research could address it. This turns a weakness into a contribution. For example: “Future studies could include multiple institutions to test whether these findings hold in other settings.”
- Keep the tone confident. Acknowledging limitations is a strength, not an apology. Avoid phrases like “unfortunately” and “this study failed to.” Instead, write “the study was limited to…” and move on.
Common mistakes to avoid:
- Listing limitations that are actually delimitations (and vice versa) — the most frequent error
- Writing a limitations section so long that it undermines confidence in the whole study — three to five genuine limitations are usually enough
- Claiming a limitation you could easily have fixed, such as “the questionnaire was not pilot tested” — that is a flaw, not a limitation
- Hiding limitations entirely, hoping the examiner will not notice — they always do
How to Write the Delimitations Section
The delimitations section is usually shorter than the limitations section, and it often appears earlier in the thesis — in Chapter 1, right after the scope of the study. Here is how to write it:
- State each boundary clearly. For each delimitation, say what you included and what you excluded. For example: “This study focuses on public secondary schools in Karachi; private schools are excluded.”
- Give a brief reason for each boundary. You do not need a long defense, but one sentence of justification shows the choice was thoughtful, not lazy. Reasons usually involve feasibility, relevance, or the need for a focused, manageable study.
- Connect delimitations to your research objectives. Your delimitations should match your objectives. If your objective is about undergraduate students, your population delimitation should say so — the two should line up neatly.
- Do not apologize for your delimitations. You chose them. Present them as deliberate, reasoned decisions that make the study doable and focused.
Where Do Limitations and Delimitations Go in a Thesis?
Placement varies slightly by university, but the usual pattern is:
- Delimitations go in Chapter 1 (Introduction), often as part of the “Scope of the Study” section, because they define what the study is about from the start.
- Limitations go in Chapter 1 as a brief preview, and then in full in Chapter 5 (Discussion and Conclusion), where you discuss what the limitations mean for your findings and for future research.
Check your university’s thesis guidelines first — some institutions want both sections in Chapter 1, and a few combine them into a single “Limitations and Delimitations” section. If your university combines them, use subheadings to keep the two clearly separate.
A Quick Checklist Before You Submit
- Every limitation is genuinely outside your control — not a decision you made
- Every delimitation is a deliberate choice you can justify in one sentence
- Nothing appears in both lists
- Each limitation is followed by its possible effect on the results
- Each delimitation is linked to your research objectives
- The tone is honest and confident throughout
Frequently Asked Questions
Can something be both a limitation and a delimitation?
No. The distinction is about control. If you chose it, it is a delimitation. If it was imposed on you, it is a limitation. If you are unsure, ask yourself: “Did I decide this, or did circumstances decide it for me?”
How many limitations should I list?
Usually three to five. Listing one or two can look like you have not thought carefully; listing ten can make the study look weak. Quality and honesty matter more than quantity.
Are limitations the same as weaknesses?
Mostly, yes — limitations are the weaknesses of your study. But “limitation” is the professional, accepted term in academic writing, and it carries a neutral tone: every study has limitations, and naming them is part of good research practice.
Do delimitations weaken my study?
No. Delimitations strengthen your study by making its scope clear and achievable. A study that tries to cover everything usually covers nothing well. Examiners prefer a focused study with clear boundaries over a sprawling one with none.
What if my supervisor says to combine them into one section?
Follow your supervisor’s and university’s format. Keep the two concepts in separate paragraphs or subheadings within the combined section, so the distinction stays visible to the examiner.
Final Thoughts
Limitations and delimitations are not a trap — they are your chance to show the examiner that you understand your own study deeply. Delimitations prove you made thoughtful choices about scope. Limitations prove you are honest about what those choices, and circumstances, cost. Write both with clarity and confidence, and this section becomes one of the strongest parts of your thesis, not the weakest.
If you found this guide helpful, you may also want to read our guides on writing research objectives, writing research questions, and writing the significance of the study — together, they cover the core building blocks of Chapter 1.