Chapter Two is where students most often confuse effort with quality. Reviewing twenty sources is not the same as writing a good literature review. A strong Chapter Two shows that you have read widely, organised what you read around your own variables, and identified a genuine gap your study fills. This guide shows Nigerian undergraduate and postgraduate students how to structure that argument rather than just stacking summaries.
The Three Parts of a Nigerian Chapter Two
- Conceptual Review — define and discuss the key concepts and variables in your topic.
- Theoretical Framework — the theory (or theories) your study rests on, and why it fits.
- Empirical Review — what previous studies found, organised by theme, not one-by-one.
- Summary and Research Gap — what the literature has not yet answered, which your study addresses.
Step-by-Step
Start From Your Variables
Take the key terms from your topic and build your conceptual review around them. If your topic is 'the effect of social media on student academic performance', your concepts are social media and academic performance. Each gets defined and discussed using multiple sources, not one.
Choose a Framework You Can Defend
Your theoretical framework should connect logically to your variables. Name the theory, its originator and year, summarise it briefly, then explain in your own words why it applies to your study. Do not bolt on a famous theory that has nothing to do with your variables — a panel will ask you to justify it.
Synthesise, Do Not Summarise
The empirical review is where weak chapters list studies like a catalogue: 'Author A found X. Author B found Y.' Instead, group studies by theme and compare them: where do findings agree, where do they conflict, and what is missing? Synthesis is what separates a postgraduate-level review from an undergraduate one.
Common Mistakes to Avoid
- Summarising each source in its own paragraph with no comparison between them.
- A theoretical framework that does not connect to your variables.
- Reviewing only old literature — include recent studies to show the field is current.
- Copying definitions or paragraphs verbatim instead of paraphrasing and citing.
- No clear statement of the research gap at the end — the review just stops.
Practical Checklist
- Is my conceptual review organised around my own variables?
- Can I justify my theoretical framework in my own words?
- Does my empirical review group and compare studies by theme?
- Have I included recent sources, not only older ones?
- Does the chapter end with a clearly stated research gap?
- Is every borrowed idea paraphrased and cited, with nothing copied verbatim?
Example Structure (Skeleton You Adapt)
- 2.1 Conceptual Review — concept 1, concept 2 (your variables).
- 2.2 Theoretical Framework — theory, originator, why it fits your study.
- 2.3 Empirical Review — thematic groups of prior studies, compared.
- 2.4 Summary of Literature Reviewed.
- 2.5 Research Gap — what is unanswered, which your study addresses.
For a deeper walkthrough of synthesis and citation, read how to write a literature review. When your review is ready, Project Lab can help you organise sources by theme and keep your references consistent. Next: how to write Chapter Three.
Frequently Asked Questions
How many sources should Chapter Two cite?
There is no fixed number, but quality and relevance matter more than quantity. Many Nigerian undergraduate reviews cite 25–40 relevant sources; postgraduate reviews cite more. Confirm any departmental minimum.
Can the literature review be its own standalone topic?
Yes — the principles are the same whether it sits inside Chapter Two or is written as a standalone review. See our dedicated literature review guide for the full method.