Which nonparametric test has no parametric counterpart?
A)Wald-Wolfowitz one-sample runs test
B)Spearman rank correlation test
C)Wilcoxon rank sum (Mann-Whitney) test
D)Kruskal-Wallis test

Question

Quizplus · Accepted Answer

The Wald-Wolfowitz one-sample runs test is a nonparametric test that has no direct parametric counterpart. It is used to test for randomness in a binary sequence, such as heads or tails in a coin flip experiment. The other three options (Spearman rank correlation, Wilcoxon rank sum, and Kruskal-Wallis) all have parametric counterparts (Pearson correlation, t-test, and ANOVA respectively).

Which Nonparametric Test Has No Parametric Counterpart