How to Write the Discussion Section of a Scientific Article?

What Should the Discussion Accomplish?

By the end of the section, the reader should understand:

• Which findings matter most
• What those findings mean
• How they compare with previous studies
• Why similarities or differences may have occurred
• What the findings imply for theory, practice, policy, or future research
• Which limitations should shape interpretation

How Should the Discussion Begin?

The opening paragraph may briefly remind the reader of the most important finding. Avoid repeating all numerical results from the Results section.

Example: The study found that X had a significant effect on Y.

1. Interpret the Finding

For each important result, explain what it means in relation to the research problem. A statement such as “a significant relationship was found” is not an interpretation by itself.

2. Compare the Findings with the Literature

Do more than state that your result agrees or disagrees with previous work. Discuss why that similarity or difference may exist.

Differences in sample, method, context, measurement, culture, or study period may help explain divergent findings.

Finding → Comparison with previous research → Similarity / difference → Possible explanation → Scientific meaning

3. Show What Similar Findings Add

If your findings are consistent with earlier research, explain what is added by confirming the relationship in a different population, country, method, or conceptual setting.

4. Discuss Contradictory Findings Carefully

Results that differ from previous studies are scientifically valuable. Possible explanations may be methodological, sampling-related, cultural, temporal, theoretical, or measurement-based. Where evidence is limited, present explanations cautiously rather than as established facts.

5. Address Unexpected Findings

Findings that do not match the hypotheses should be discussed rather than ignored. They may point to limitations in existing theory, measurement, or assumptions about the research context.

6. Explain the Theoretical Contribution

If the study engages with a theory, model, or conceptual framework, explain whether the findings support, extend, qualify, or challenge it. Avoid vague claims such as “this study contributes to the literature” without specifying how.

7. Explain the Practical Contribution

Where the findings have practical implications, state for whom they matter and under what conditions. Recommendations should remain within the limits of what the evidence actually supports.

8. Avoid Overinterpretation

Interpretations should remain consistent with the study design.

For example, an association observed in a cross-sectional study does not establish causality. Likewise, findings from a small or restricted sample should not be generalised without caution.

9. Explain the Limitations

Reporting limitations does not diminish a study; it helps readers judge the findings within the correct boundaries.

• Study design
• Sample size or sampling method
• Single-centre or geographically restricted data
• Self-report measures
• Measurement limitations
• Missing data
• Time constraints
• Uncontrolled variables
• Generalizability

Where possible, explain how each limitation may affect interpretation rather than simply listing it.

10. Point to Future Research

Instead of writing only that “more research is needed,” identify which population, variable, method, or design would be worth examining next.

Discussion by Study Type

Quantitative Research

Interpret findings in relation to the research questions and hypotheses, considering direction, magnitude, and scientific meaning rather than focusing only on p values.

Qualitative Research

Relate themes and patterns of meaning to previous literature, the conceptual framework, and the research context. The Discussion should not become a repetition of participant quotations.

Systematic Reviews

Discuss overall trends, agreements and disagreements across included studies, the strength of the evidence, and remaining gaps. If quality or risk of bias was assessed, consider its effect on interpretation.

What Is the Difference Between Discussion and Conclusion?

Discussion interprets the findings in detail and relates them to previous research.

Conclusion presents the main message of the study more briefly and directly. It should not simply be a shortened copy of the Discussion.

Common Problems in Discussion Sections

• Rewriting the Results section
• Stating only that findings are “consistent with the literature”
• Failing to discuss possible reasons for similarities or differences
• Using many references that are only loosely related to the study
• Making unsupported causal claims
• Treating statistical significance as equivalent to scientific importance
• Ignoring unexpected or non-significant findings
• Omitting limitations
• Making unrealistic practical recommendations
• Introducing new findings for the first time in the Discussion

A Useful Paragraph Sequence

When discussing a finding, the following sequence can be useful:

Finding → Meaning → Comparison with literature → Possible explanation → Scientific / practical contribution

This does not need to be applied mechanically to every paragraph; it is simply a way to keep the Discussion from becoming a list of references.

Before Submission, Check the Following

• Have the most important findings been discussed?
• Is their meaning explained clearly?
• Is there a genuine comparison with relevant literature?
• Are possible reasons for similarities and differences considered?
• Is the study's contribution clear?
• Are any claims stronger than the evidence allows?
• Are limitations presented honestly and in balance?
• Are future research suggestions specific?
• Does the Discussion avoid introducing previously unreported findings?