Define the review question
Set clear boundaries for the topic, population, geography, variables and period. A focused question makes the search repeatable and prevents the review from becoming an unrelated collection of sources.
Create a transparent search plan
List the keywords, synonyms, databases and inclusion rules you will use. Record the search date because databases change over time.
- ✓ Main concepts and alternative terms
- ✓ Relevant academic databases
- ✓ Publication period
- ✓ Language and study-type limits
- ✓ Reasons for excluding a paper
Evaluate source quality
Check whether the study is peer reviewed, whether its method fits its claim and whether the sample supports the conclusion. A highly cited article can still have limitations that matter to your question.
Use a literature matrix
Create a table containing the author, year, objective, sample, method, key finding and limitation of each study. This makes comparison easier and reduces accidental repetition.
Organise by themes
Group studies around concepts, methods or findings. Within each theme, compare studies instead of discussing one paper per paragraph. Explain patterns, contradictions and changes over time.
Identify the research gap carefully
A gap is not simply a topic with few articles. It may be an under-studied population, conflicting evidence, an outdated dataset, a weak method or a relationship not tested in a particular context.
- ✓ Show evidence that the gap exists
- ✓ Explain why the gap matters
- ✓ Keep the gap narrow enough to study
- ✓ Connect it directly to the objectives
End with a conceptual direction
Conclude by summarising what is established, what remains uncertain and how your study will respond. The final paragraphs should naturally lead into the research questions or methodology.