The rank-order test that would be used in the same kind of research situation as an analysis of variance is
A)the Wilcoxon signed-rank test.
B)the Wilcoxon rank-sum test.
C)the Kruskal-Wallis H test.
D)Spearman's rho.

Question

Quizplus · Accepted Answer

The Kruskal-Wallis H test is a nonparametric alternative to the one-way ANOVA test, which is used to determine whether the means of two or more populations are equal. It is used when the assumptions of normality and equal variances are not met. The Wilcoxon signed-rank test and Wilcoxon rank-sum test are used for comparing two related or independent samples, respectively. Spearman's rho is a correlation coefficient used to measure the strength of association between two variables. None of these tests would be appropriate for this research situation, except for the Kruskal-Wallis H test.

The Rank-Order Test That Would Be Used in the Same