The nonparametric counterpart of the parametric single-factor ANOVA F-test is the
A) Wilcoxon signed-rank test.
B) Wilcoxon rank-sum test.
C) Kruskal-Wallis test.
D) Friedman's test.
E) None of the above tests are correct.

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is the nonparametric equivalent of the single-factor ANOVA F-test. The Wilcoxon signed-rank test is used to compare two related samples, the Wilcoxon rank-sum test is used to compare two independent samples, and Friedman's test is used to compare multiple related samples. Therefore, options A, B, and D are not appropriate for comparing multiple independent groups as in ANOVA.

The Nonparametric Counterpart of the Parametric Single-Factor ANOVA F-Test Is