The nonparametric counterpart of the parametric one-way analysis of variance F-test is:
A) Kruskal-Wallis test.
B) Friedman test.
C) Wilcoxon rank sum test.
D) Wilcoxon signed rank test.
E) Sign test for comparing paired samples.

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is the best choice as it is the nonparametric equivalent of the one-way ANOVA F-test and compares three or more independent groups. The Friedman test compares three or more dependent groups, the Wilcoxon rank sum test compares two independent groups, the Wilcoxon signed rank test compares two dependent groups, and the sign test is used to compare paired samples with a dichotomous outcome.

The Nonparametric Counterpart of the Parametric One-Way Analysis of Variance