Friedman complete-block comparison
Rank repeated conditions within complete synthetic blocks with tie correction.
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Use 3–30 conditions in columns and 3–30 complete independent blocks in rows. No missing values. The chi-square tail is asymptotic and can be poor with few blocks.
The starting values are hypothetical. Results update as you edit. Use aggregate or synthetic inputs only.
Calculation results
- Friedman Q
- 3.5
- Degrees of freedom
- 2
- Asymptotic p
- 0.17377394
- Rank totals
- 5, 9, 10
- Small-sample caution
- Few blocks or conditions: use a justified permutation or exact method for inference.
How to interpret the output
Within-block ranks remove block location differences. Friedman Q tests condition distributions under exchangeability within blocks; it does not estimate an effect size or determine which conditions differ. Ties are corrected, but all-tied blocks supply no ordering information.
Method referenceSource checked 2026-11-06. Read the reproducible calculator validation report.