The rank-order test that would be used in the same kind of research situation as a t test for independent means 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 Wilcoxon rank-sum test is used to compare two independent groups of data when the assumption of normality is violated, similar to the t test for independent means. The Wilcoxon signed-rank test is used to compare two related or paired samples, the Kruskal-Wallis H test is used to compare more than two independent groups, and Spearman's rho is a correlation coefficient used to measure the association between two variables.

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