Common Mistakes Students Make When Writing Thesis Proposals (And How to Avoid Them)
You’ve spent weeks—maybe months—working on your thesis proposal. You’ve read dozens of articles, written and rewritten your chapters, and finally submitted it with a sense of relief. Then the email arrives. Your supervisor’s feedback is lengthy, critical, and includes the words “revise substantially” or, worse, “proposal not approved.”
That sinking feeling is all too familiar for many Kenyan students. But here’s the truth that most students don’t realize: the vast majority of proposal rejections aren’t because the research idea is bad. They’re because of avoidable mistakes—errors in structure, presentation, or logic that could have been caught before submission.
At Proposal Writers Kenya, we’ve reviewed hundreds of thesis proposals from students across Kenyan universities. We’ve seen the same patterns emerge again and again. The good news? Every single one of these mistakes is fixable.
In this article, we’ll walk you through the 10 most common mistakes students make when writing thesis proposals—and, more importantly, exactly how to avoid them. Whether you’re an undergraduate at the University of Nairobi, a master’s student at Kenyatta University, or a PhD candidate at Moi University, this guide will help you submit a proposal that impresses your supervisor and gets approved.
Mistake #1: A Vague or Weak Problem Statement
What It Looks Like
A weak problem statement is often the number one reason proposals get rejected. It typically sounds something like this:
“Many students in Kenya struggle with academic performance. This study will investigate factors affecting student performance.”
This statement is too broad. It doesn’t specify which students, what factors, or why this matters now. It confuses symptoms with the actual research problem.
Why It’s a Problem
Your problem statement is the foundation of your entire proposal. If it’s vague, your supervisor can’t understand what you’re actually researching. Everything that follows—your objectives, research questions, and methodology—will feel unfocused because the central problem isn’t clearly defined.
How to Avoid It
Use the three-part structure for a strong problem statement:
What is known: Briefly summarize existing research on your topic
What is not known: Identify the specific gap your study will fill
Why it matters: Explain the consequences of not addressing this gap
Before (Weak):
“Poor academic performance is a challenge in Kenyan universities. This study will investigate factors affecting student performance.”
After (Strong):
*”Existing research has established that academic performance among Kenyan university students is influenced by factors such as socioeconomic background, study habits, and institutional support. However, there is limited empirical research on how the shift to blended learning models post-COVID-19 has affected student performance specifically among first-year students in Nairobi-based public universities. Without understanding this relationship, universities cannot design effective interventions to support students during their critical first year. This study seeks to address this gap by investigating the factors influencing academic performance among first-year students in blended learning environments.”*
Notice how the strong version is specific, grounded in existing literature, and clearly states the gap and its significance.
Mistake #2: Misaligned Objectives, Research Questions, and Methodology
What It Looks Like
This mistake happens when the different parts of your proposal don’t match. For example:
Your objectives are qualitative (“explore,” “understand”) but your methodology is purely quantitative
Your research questions don’t directly address your stated objectives
Your data analysis plan can’t answer your research questions
Why It’s a Problem
Misalignment shows your supervisor that you haven’t thought through the logical flow of your research. It raises doubts about whether you understand research design fundamentals.
How to Avoid It
Before you write, create a simple alignment matrix:
| Objective | Research Question | Data Needed | Analysis Method |
|---|---|---|---|
| To determine the extent of student engagement with e-learning platforms | What is the extent of student engagement with e-learning platforms? | Survey responses on frequency of logins, time spent | Descriptive statistics (means, frequencies) |
| To examine the relationship between perceived usefulness and student engagement | What is the relationship between perceived usefulness and student engagement? | Likert scale responses on perceived usefulness and engagement | Pearson correlation |
Use this matrix as your guide. If you can’t fill in all the columns for each objective, you need to refine your proposal before proceeding.
Mistake #3: Literature Review That Only Summarizes
What It Looks Like
“Muganda (2020) found that social media affects student engagement. Otieno (2021) found that social media affects student engagement. Wanjiku (2022) also found that social media affects student engagement.”
This is summarizing, not synthesizing. It reads like a list of unrelated facts rather than a coherent narrative.
Why It’s a Problem
A literature review that only summarizes tells your supervisor you haven’t truly engaged with the literature. You’re not showing critical thinking, identifying patterns, or establishing your research gap.
How to Avoid It
Organize your literature review thematically, not author-by-author. Use synthesis language to connect sources:
“Research on student engagement has yielded varied findings. Several studies, including Muganda (2020) and Otieno (2021), have established a positive relationship between social media use and engagement. However, Wanjiku (2022) found no significant relationship in Kenyan public universities, suggesting that institutional context may moderate this effect. This discrepancy indicates a need for further investigation into contextual factors.”
Notice how this version groups studies together, identifies patterns, and uses the discrepancies to justify further research.
Mistake #4: Sample Size Without Justification
What It Looks Like
“The study will use a sample of 100 respondents.”
No explanation of where 100 came from. No formula. No justification.
Why It’s a Problem
A sample size plucked from thin air raises serious questions about your methodology. Your supervisor will wonder if you understand sampling principles and whether your findings will be valid.
How to Avoid It
Use a recognized formula and show your calculation. For Kenyan students, the Yamane formula is popular:
Yamane Formula:
n = N / (1 + N(e)²)
Where:
n = sample size
N = population size
e = margin of error (usually 0.05 or 5%)
Example: If your target population is 500 students:
n = 500 / (1 + 500 × 0.05²)
n = 500 / (1 + 500 × 0.0025)
n = 500 / (1 + 1.25)
n = 500 / 2.25
n = 222 respondents
Always include your calculation and justify your margin of error.
Mistake #5: Poor Referencing and Formatting
What It Looks Like
Mixing APA, MLA, and Harvard styles in the same document
In-text citations that don’t appear in the reference list
Inconsistent font sizes, spacing, and margins
Missing page numbers in citations
Why It’s a Problem
Poor formatting creates a terrible first impression. It suggests carelessness and lack of attention to detail. In many Kenyan universities, formatting alone accounts for marks on assessment rubrics—and inconsistent referencing can raise plagiarism concerns.
How to Avoid It
Choose one style and stick to it. APA 7th is common, but confirm with your department.
Use reference management software. Mendeley and Zotero are free and will format your citations and references automatically.
Double-check every citation. Ensure each in-text citation has a corresponding entry in your reference list.
Review your university’s formatting guidelines. Download the official guide and use it as a checklist.
Mistake #6: Missing or Inadequate Conceptual Framework
What It Looks Like
No conceptual framework at all
A diagram with no written explanation
Variables listed but no explanation of relationships
Why It’s a Problem
Your conceptual framework is the visual heart of your proposal. It shows your supervisor exactly how you understand your research problem and the relationships you intend to investigate. Without it, your study lacks clarity.
How to Avoid It
Your conceptual framework needs two components:
A visual diagram: Use boxes to show your independent variables (what influences), dependent variable (what is influenced), and arrows to show hypothesized relationships
A written explanation: Describe each variable, explain the expected relationships, and justify why you expect these relationships
Example:
“Figure 1 presents the conceptual framework for this study. The independent variables—perceived usefulness, perceived ease of use, and technical support—are hypothesized to influence the dependent variable, student engagement. The framework is grounded in the Technology Acceptance Model, which suggests that perceived usefulness and ease of use predict technology adoption behaviors.”
Mistake #7: Ethical Considerations Treated as an Afterthought
What It Looks Like
“Ethical considerations will be observed.”
One sentence. No details. No mention of NACOSTI. No discussion of informed consent or confidentiality.
Why It’s a Problem
In Kenya, ethical approval is not optional. You cannot collect data without a NACOSTI research permit. A proposal that treats ethics as an afterthought signals that you haven’t understood the regulatory requirements.
How to Avoid It
Dedicate a full subsection to ethics. Include:
Informed consent: How you will obtain permission from participants
Confidentiality: How you will protect participant identities
Anonymity: Whether and how you will anonymize data
NACOSTI: Mention that you will obtain a research permit before data collection
Institutional ethics: Mention approval from your university’s ethics committee
Data storage: How and where data will be stored, and for how long
Mistake #8: Weak or Missing Theoretical Framework
What It Looks Like
No theory mentioned
A theory named but not applied
A theory that clearly doesn’t fit your study context
Why It’s a Problem
Your theoretical framework grounds your study in established academic knowledge. Without it, your research lacks academic rigor and your findings become difficult to interpret.
How to Avoid It
Identify theories relevant to your field. For management studies, consider Resource-Based View or Institutional Theory. For education, consider Social Learning Theory or Constructivism.
Explain why your chosen theory fits. Don’t just name the theory—explain how it applies to your specific research context.
Connect the theory to your variables. Show how the theory explains the relationships you’re investigating.
Mistake #9: Rushing the Proposal Without Supervisor Input
What It Looks Like
Submitting the final proposal without showing any drafts
Ignoring feedback or arguing with every comment
Sharing work with supervisor only days before the deadline
Why It’s a Problem
Your supervisor is not your enemy—they’re your guide. When you bypass their input, you miss critical corrections that could save you from rejection. Supervisors also appreciate being consulted early; ignoring them can damage your relationship.
How to Avoid It
Share chapter drafts as you complete them, not just the final product
Respond to all feedback systematically. Use a table to track comments and your responses
Give your supervisor at least two weeks to review your work
Schedule regular check-ins rather than waiting for emergencies
Mistake #10: Plagiarism—Accidental or Intentional
What It Looks Like
Copy-pasting from sources without quotation marks or citations
Paraphrasing too closely to the original text
Reusing sections from your own previous work without citation (self-plagiarism)
Why It’s a Problem
Plagiarism is a serious academic offense. In Kenyan universities, it can lead to:
Automatic rejection of your proposal
Formal disciplinary proceedings
Suspension or even expulsion
Permanent damage to your academic reputation
How to Avoid It
Always cite sources, even when paraphrasing
Use quotation marks for direct quotes, no matter how short
Run your work through a plagiarism checker before submission
Keep a research log tracking all sources as you read
When in doubt, cite. It’s always better to over-cite than to risk plagiarism
Bonus: Formatting Mistakes That Irritate Supervisors
Beyond the major mistakes above, small formatting errors can create a poor impression:
Inconsistent font sizes and styles throughout the document
Incorrect page numbering (Roman numerals on preliminaries, Arabic on main text)
Missing table of contents or tables that don’t update automatically
Poorly formatted tables and figures that are hard to read
Incorrect margins that don’t meet university requirements
How to fix it: Use Microsoft Word styles consistently. Set up your margins, fonts, and spacing before you start writing. Learn to use the automatic table of contents feature.
Checklist: Pre-Submission Review
Before you submit your proposal, run through this checklist:
| Check | Item |
|---|---|
| ☐ | Problem statement uses the three-part structure |
| ☐ | Objectives, research questions, and methodology are aligned |
| ☐ | Literature review synthesizes, not just summarizes |
| ☐ | Sample size includes formula and justification |
| ☐ | Referencing is consistent and complete |
| ☐ | Conceptual framework includes diagram and explanation |
| ☐ | Ethical considerations section is comprehensive |
| ☐ | Theoretical framework is appropriate and applied |
| ☐ | Supervisor has reviewed at least one draft |
| ☐ | Plagiarism check completed |
| ☐ | Formatting matches university guidelines |
Conclusion
Writing a thesis proposal is one of the most challenging academic tasks you’ll face. But here’s the encouraging truth: most of the mistakes that lead to rejection are completely avoidable. They’re not about your intelligence or your research idea. They’re about attention to detail, following structure, and understanding what your supervisor is looking for.
By avoiding the 10 mistakes outlined in this article, you’re giving yourself the best possible chance of submitting a proposal that earns approval—and sets you up for successful research.
But we understand that even with the best guidance, writing a thesis proposal can feel overwhelming. You’re balancing coursework, maybe a job, family responsibilities, and the pressure of deadlines. Sometimes, you just need expert help to ensure everything is done right.
That’s where Proposal Writers Kenya comes in. Our team of experienced academic writers specializes in helping Kenyan students craft clear, well-structured, supervisor-approved proposals. Whether you need help with a specific chapter or the entire proposal, we’re here to support you.
Get your free quote today and let’s get your research journey started on the right foot.