Of the following rank-order tests, which applies to the same kind of research situation as a t test for independent means?
A)Wilcoxon signed-rank test
B)Wilcoxon rank-sum test
C)Kendall's tau
D)Spearman's rho

Question

Quizplus · Accepted Answer

The Wilcoxon rank-sum test (also known as the Mann-Whitney U test) is the nonparametric equivalent of the independent samples t-test, and is used to compare two independent groups when normality assumptions are not met or may be violated. The Wilcoxon signed-rank test is the nonparametric equivalent of the dependent samples t-test and is used to compare two related groups or paired samples. Kendall's tau and Spearman's rho are measures of association and are not rank-order tests used for comparing groups.

Of the Following Rank-Order Tests, Which Applies to the Same