Kruskal Wallis Spss Interpretation. It is considered to be the non parametric equivalent of the one way anova. It s used if the anova assumptions aren t met or if the dependent variable is ordinal.
The kruskal wallis test is a nonparametric distribution free test and we use it when the assumptions of one way anova are not met. The kruskal wallis h test sometimes also called the one way anova on ranks is a rank based nonparametric test that can be used to determine if there are statistically significant differences between two or more groups of an independent variable on a continuous or ordinal dependent variable. This guide will explain step by step how to run the kruskal wallis test in spss statistical software with an example.
Spss statistics added the dunn or dunn bonferroni post hoc method following a significant kruskal wallis test in the nptests procedure analyze nonparametric tests independent samples in the menus.
Compare three or more independent groups on an ordinal outcome. This simple tutorial quickly walks you through running and understanding the kw test in spss. There you will find the scheirer ray hare extension of the kruskal wallis test which meets your need. The kruskal wallis test is a nonparametric distribution free test and we use it when the assumptions of one way anova are not met.
