Friedman Test
Compare 3 or more dependent (paired) measurements. The non-parametric alternative to repeated measures ANOVA.
χ² Statistic
Test the difference between measurements with the Friedman χ² statistic, degrees of freedom and p-value.
Kendall's W
Effect size is reported with Kendall's W coefficient.
Post-Hoc
If significant, pairwise Wilcoxon comparisons with Bonferroni correction.
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