The nonparametric counterpart of the parametric one-way analysis of variance F-test is the:
A) Kruskal-Wallis test
B) Friedman test
C) Wilcoxon rank sum test
D) Wilcoxon signed rank sum test
E) two-tailed t-test

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is the nonparametric equivalent of the parametric one-way analysis of variance F-test. It is used to compare the medians of three or more groups to determine if there is a significant difference between them. The Friedman and Wilcoxon tests are nonparametric tests for dependent samples, while the Wilcoxon signed rank test is a nonparametric test for independent samples. The two-tailed t-test is a parametric test for comparing the means of two groups.

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