Re: Covariate in ANCOVA question

The first step would be fine but your second would be
incorrect. You would not get the desired type I error levels in the
pairwise comparisons.
We would have used "manual" Bonferroni correction, i.e. increasing the
alpha level from 0.05 to 0.0083 for the six pairwise comparisons.

I suggest you search with these terms:
SPSS "analysis of covariance" "pairwise comparisons"
Thanks a lot for this suggestion


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