Key points at a glance
- Inspect a scatterplot first.
- Match the method to measurement, pattern and outliers.
- Report the coefficient, sample size and uncertainty.
Look at the relationship shape
Example: Study time rises with completed exercises rapidly at first and then levels off. The pattern may be monotonic without being linear. Spearman can summarise ordering; Pearson answers a linear association question. A coefficient alone can hide curves or separate clusters.
Consider scale and unusual points
Ordinal measures and influential extremes may favour a rank analysis. Spearman is not an automatic fix for poor measurement. Many tied ranks, missing observations or distinct subgroups need additional thought.
Report more than significance
Name Pearson r or Spearman ρ, give N, direction, magnitude and preferably an interval. Explain what variables co-vary in which sample. A p-value alone does not convey strength or shape.
Avoid causal language
A third variable might influence both measures, and direction can be uncertain. Even a strong coefficient is not proof of an effect. Keep conclusions within the design and discuss outliers or subgroup patterns.
Final submission context
Formal details can feel like a separate writing task, but they matter just as much for a printed submission. Anything missing, misplaced or inconsistently formatted in the document will also appear in the bound copy.
Use this guide together with your cover page, table of contents, page numbers, source notes and appendices. Prepare the final PDF for printing and binding only after the complete file has been checked.
Practical check before PDF export
- Do headings, chapter structure and page numbers match?
- Are sources, figures and tables included completely?
- Are required elements such as declarations, appendices or the cover page included where required?
- Did you open and check the final PDF after exporting it?
Checklist
- Scatterplot inspected.
- Scale and outliers considered.
- Coefficient named correctly.
- Causal claims avoided.
Common mistakes
- Choosing solely from a normality test.
- Ignoring a curved pattern.
- Reading r as a percentage or proof of cause.
Prepare the finished thesis for submission
Once the content and university requirements are checked, review your PDF and the available printing and binding options.
Review printing optionsRelated content
Explore related guidance on thesis structure, sources, formatting and final submission.
Frequently asked questions
Is Spearman always better for small samples?
No. The question, measurement and shape matter more than N alone.
Can I report both?
Yes, when the comparison is justified rather than chosen after seeing the preferred result.
What does a negative value mean?
Higher values of one variable tend to accompany lower values of the other.