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 Sums Test. B) McNemar test. C) Kruskal-Wallis Rank Test. D) χ²test for difference among three proportions.

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Quizplus · Accepted Answer

The Kruskal-Wallis Rank Test is the appropriate nonparametric test for comparing the median response time for three independent groups since it can handle multiple groups and does not rely on normality assumptions. The Wilcoxon Rank Sums Test is appropriate for comparing the median response time between two independent groups, while the McNemar test is appropriate for paired dichotomous data. The χ² test for difference among three proportions is not applicable in this scenario.

Suppose There Is Interest in Comparing the Median Response Time