The ordinal test for assessing the difference between two independent samples, is the
A) Wilcoxon T
B) Mann-Whitney U
C) Kruskal-Wallis H
D) Spearman r

Question

Quizplus · Accepted Answer

The Mann-Whitney U test is used to compare two independent samples and determines if one sample has higher values than the other. It is a nonparametric test that does not assume normality of the data and is based on the rank ordering of the observations. The Wilcoxon T test is used to compare two related samples and the Kruskal-Wallis H test is used to compare three or more independent samples. The Spearman r test is used to assess the correlation between two variables.

The Ordinal Test for Assessing the Difference Between Two Independent