For a certain variable I applied a Three Factor ANOVA and found a
significant interaction between two factors. I have two levels for each
factor. Then, I applied the HSD Tukey test for multiple unplanned
comparisons, in order to detect what are the significantly different
treatments. Since I detected an interaction between two factors, is it
correct to apply Tukey test? If not, are there other type of unplanned
comparisons that might be used?
Thank you for your suggestions
Best Regards
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