Answers are grounded in this paper and cite their sources.
The Wilcoxon-Mann-Witney test is extended to account for a second independent factor. The new test statistic’s probability mass function and normal approximation are derived. Critical-values for balanced, unbalanced and large sample designs are given. The immediate extension of this method to a wide range of non-parametric tests is explained.
No takes yet. Share an insight, caveat, or question.
Holland et al. (2016) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: