why is a nonparametric test necessary is a nonparametric test statistically significant are pre-test scores statistically significant what tests are nonparametric is a nonparametric test needed how to test if a sample is nonparametric is the test a parametric or parametric what is a nonparametric test why is a nonparametric test necessary what tests do i need to be nonparametric how to test the statistical significance of a pre and post test. what tests are nonparametric do you test for the nonparametric test b do ad-controlled groups need nonparametric scores? is there a nonparametric test for testing are matched pairs nonparametric why is there a nonparametric test for 3 matched pairs? what is the purpose of a nonparametric test when is a test used that are nonparametric why is there a nonparametric test