The nonparametric counterpart of the randomized block model of the analysis of variance is the:
A) Kruskal-Wallis test
B) Friedman test
C) Wilcoxon rank sum test
D) Wilcoxon signed rank sum test
E) Wilcoxon rank sum test and Wilcoxon signed rank sum test

Question

Quizplus · Accepted Answer

The Friedman test is the nonparametric equivalent of the randomized block ANOVA. It is used when multiple treatments are applied to the same set of subjects, and it tests whether there are significant differences among treatments. Kruskal-Wallis test is used to test for differences among three or more independent samples, while the Wilcoxon rank sum test and Wilcoxon signed rank sum test are used for comparing two independent samples and two related samples, respectively.

The Nonparametric Counterpart of the Randomized Block Model of the Analysis