Kruskal-Wallis - SPSS (part 3)
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The third part of the Kruskal-Wallis SPSS tutorial shows how to interpret a significant test result using chi-square and p-values, and explains the need for post hoc analysis to pinpoint which groups differ in ranked outcomes.
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Now, something that is useful about the Kruskal-Wallis test, in contrast to the Mann-Whitney U test, is that you get a chi-square value, which means we can calculate an effect size estimate, which you can't do with the Mann-Whitney U test.
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