If a one-way ANOVA is considered a parametric test, what is its non-parametric equivalent?
A) Kruskal-Wallis ANOVA
B) Friedman's ANOVA
C) Roy's largest root
D) There is no non-parametric equivalent, therefore multiple Mann-Whitney tests should be used.

Question

Quizplus · Accepted Answer

The Kruskal-Wallis ANOVA is the non-parametric equivalent of the one-way ANOVA. It can be used when the assumptions of normality and equal variances are not met. Friedman's ANOVA is a non-parametric test for repeated measures, and Roy's largest root is a parametric test for multiple comparisons. Multiple Mann-Whitney tests should only be used as a last resort and may increase the likelihood of Type I errors.

If a One-Way ANOVA Is Considered a Parametric Test, What