Homogeneous variability within the various sample groups is required in order to calculate the
A) U test
B) H test
C) Spearman r
D) none of these

Question

Quizplus · Accepted Answer

Homogeneous variability within the various sample groups is not a requirement for calculating the U test (Mann-Whitney U test), H test (Kruskal-Wallis H test), or Spearman's rank correlation coefficient (Spearman r). These non-parametric tests are used precisely because they do not assume normal distribution or homogeneity of variance.

Homogeneous Variability Within the Various Sample Groups Is Required in Order