Does anyone have SPSS syntax (or suggestions) for running a nonparametric analysis of covariance? My dependent variable is not normally distributed, my independent variables are categorical, and I have 2 covariates I would like to include in the analysis. The drop down nonparametric options in SPSS do not allow for this analysis.
Thank you!
I don't think SPSS has such an option. Nonetheless, you may not need to run a nonparametric test (assuming your dependent is continuous). You can just go with usual parametric procedures in most cases. To be more specific, it is not necessary that your dependent variable is normally distributed. What is important is the residuals (or errors) to be normally distributed. Take a look at previous RG threads on this.
The drop down nonparametric options don't allow for controlling for covariates, but I believe it can be done with syntax. Just not sure what the appropriate code is.
You might benefit from the following link. But there seems to be no straightforward way for your case in SPSS.
https://www-01.ibm.com/support/docview.wss?uid=swg21477497
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