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What is Understanding the Kruskal-Wallis H Test about?

The Kruskal-Wallis H test is a non-parametric method used to compare more than two independent groups of samples that are not normally distributed. It compares the rank sums of the groups rather than the means. The null hypothesis is that the central tendencies of all groups are equal, while the alternative hypothesis is that at least one group has a different central tendency. To perform the test, the scores are ranked together and the ranks are summed for each group. The test statistic H is then calculate

Author

Zekiah Mari Inzon

Language

EN