Compare paired measurements
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How do practice scores change when the same fictional participants complete two assessments?

DATA: Synthetic teaching records; not research findings.
Download: https://datastatpro.com/downloads/practice/paired-measurements.csv

VARIABLES
participant_id: Synthetic identifier; matches each pair
before_score: Assessment points before practice
after_score: Assessment points after practice

ANALYSIS CHECKLIST
[ ] 1. Keep before_score and after_score on the same participant row.
[ ] 2. Inspect the distribution of within-participant differences, not only the two original columns.
[ ] 3. Use the paired-test tutorial to assess whether a paired t-test is appropriate.
[ ] 4. Report the direction and size of change and acknowledge that these data were constructed for teaching.

DISCUSSION
Which method did you choose, and why?
What assumptions did you check?
What does your result show, and what can it not establish?

Tutorial: https://datastatpro.com/knowledge-base/tutorials/how-to-perform-paired-t-test-datastatpro.html

DataStatPro. (2026). DataStatPro (Version 2.2.3) [Statistical analysis platform]. https://www.datastatpro.com