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Do i need to do another test after KW to account for covariates or is there a way to account for covariates when doing the initial KW test in SPSS?

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    $\begingroup$ To summarize the answer to the question that I marked as a duplicate: use ordinal regression, not Kruskal-Wallis. $\endgroup$ – Kodiologist Jul 4 '17 at 18:27