Suppose there is interest in comparing the median response time for three independent groups learning a specific task. The appropriate nonparametric procedure is
A) Wilcoxon rank sum test.
B) McNemar Test.
C) Kruskal-Wallis rank test.
D) X² test.

Question

Quizplus · Accepted Answer

The appropriate nonparametric procedure for comparing the median response time of three independent groups is the Kruskal-Wallis rank test. This test assesses whether the medians of two or more groups are equal or not. The Wilcoxon rank sum test is used for comparing the medians of two independent groups. The McNemar test is used for comparing proportions for paired categorical data. The X² test is used for comparing proportions for independent categorical data.

Suppose There Is Interest in Comparing the Median Response Time