The Mann-Whitney U test is:
A) an example of a parametric statistic
B) a test that assumes that the underlying distributions are normally distributed
C) designed for two groups of scores
D) intended for within-subjects designs

Question

Quizplus · Accepted Answer

The Mann-Whitney U test is a non-parametric test designed for comparing differences between two independent groups on a continuous or ordinal outcome, not assuming normal distribution of the data, making option C correct. It is not intended for within-subjects designs, does not assume normal distribution, and is not a parametric statistic.

The Mann-Whitney U Test Is