omega squared

  1. B

    Post-hoc power analysis for a Welch ANOVA and also a Kruskal-Wallis test.

    I planned to analyse some data with several ANOVAs (I have many different dependent variables), but much of the data violates the ANOVA assumptions, so they require Welch's ANOVA or the non-parametric Kruskal-Wallis test instead. Using SPSS, I generated effect sizes (partial eta squared) and...