Suppose There Is Interest in Comparing the Median Response Time

Multiple Choice

Suppose there is interest in comparing the median response time for three independent groups learning a new specific task. In this case, what is the appropriate nonparametric procedure to use?

A) the Wilcoxon rank sum test
B) the Wilcoxon signed-rank test
C) the Kruskal-Wallis test for differences in medians
D) either a or b