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Major vs Minor Revisions Peer Review
Peer review is more than identifying problems in a manuscript—it is about communicating those problems in a way that helps editors make informed decisions and authors understand what must be addressed before publication.
One of the most common challenges faced by reviewers is deciding whether a concern should be classified as major or minor. Misclassifying review comments can confuse authors, complicate editorial decisions, and reduce the effectiveness of the peer-review process.
This guide explains how experienced reviewers distinguish major concerns from minor ones and how to frame feedback with clarity and confidence.
The One Question Every Reviewer Should Ask
Instead of asking:
“How difficult is this issue to fix?”
Ask yourself:
If this concern remains unresolved, should the paper still be published?
This single question forms the foundation of effective peer review.
If the answer is No, the concern is Major.
If the answer is Yes, the concern is Minor.
Importantly, the amount of work required to resolve an issue does not determine its category. A one-line correction can be major, while a lengthy revision may still be considered minor.
What Makes a Review Comment Major?
A major concern affects the scientific integrity of the manuscript. If left unresolved, it could mislead readers or undermine confidence in the research.
Examples include:
- Statistical or methodological flaws that threaten the validity of the findings.
- Conclusions that are not supported by the presented data.
- Insufficient methodological detail that prevents reproducibility.
- Missing control groups or omission of essential literature.
These issues directly affect whether the manuscript is suitable for publication.
What Makes a Review Comment Minor?
Minor concerns improve the quality of a paper without affecting its scientific conclusions.
Typical examples include:
- Grammar and writing style.
- Figure and table formatting.
- Heading consistency.
- Reference formatting.
- Small clarifications or definitions.
While these comments improve readability and presentation, the manuscript remains scientifically publishable even if these issues are not fundamental to its conclusions.
A Simple Decision Framework
When evaluating any concern, work through the following sequence:
- Would the paper still be publishable if this issue remained unresolved?
- Does the concern fundamentally alter the study’s conclusions?
- Does it represent a fatal flaw requiring rejection?
This structured approach helps reviewers produce reports that are consistent, objective, and easy for editors to interpret.
How to Write Effective Major Comments
Major comments should be direct and specific.
Avoid vague recommendations such as:
“The statistical analysis could be strengthened.”
Instead, explain precisely what is required:
“The analysis does not account for multiple comparisons. A Bonferroni correction is required before the results can be interpreted.”
Likewise, rather than suggesting:
“The authors may wish to consider adding a control group.”
State the requirement clearly:
“A control group is required. Without it, the reported improvement cannot be attributed to the intervention.”
Specific language eliminates ambiguity and helps authors prioritise essential revisions.
Common Mistakes Reviewers Should Avoid
1. Treating Major Issues as Minor
Labelling methodological flaws as minor can mislead authors and create inconsistencies during editorial assessment.
2. Softening Critical Feedback
Phrases like “You might want to consider…” make essential revisions appear optional.
3. Making Everything Major
If every issue is labelled as major, authors cannot determine priorities, and editors may question the reviewer’s judgement.
A balanced review clearly separates mandatory revisions from optional improvements.
Key Takeaways
An effective reviewer should:
- Identify every concern objectively.
- Test whether it affects publishability.
- Categorise concerns appropriately.
- Write major comments firmly and precisely.
- Keep minor comments concise and constructive.
Above all, remember the guiding principle:
Would this paper mislead readers if this issue remained unresolved?
If yes, it is a major concern.
If no, it is a minor concern.