The Kruskal-Wallis Test for Differences in more than 2 Medians is a nonparametric alternative to:
A) ANOVA F test for completely randomized experiments
B) Student's t-test for related samples
C) Student's t-test for independent samples
D) Wilcoxon's Rank Sum Test for differences in two medians
E) Student's t-test for related samples and Student's t-test for independent samples

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is a nonparametric alternative to the ANOVA F test for completely randomized experiments that compares the medians of three or more groups, assuming the populations have the same shape but potentially different central tendencies. Therefore, the best choice is A. The other options refer to tests that compare two groups or sets of paired data, and are not suitable for comparing multiple groups.

The Kruskal-Wallis Test for Differences in More Than 2 Medians