I have an experiment in which I'm doing, among other things, a One way Anova with one dependent variable and 5 groups. After the ANOVA i'm doing Tukey's post hoc to test for differences between groups.
I want to conduct a power analysis to determine if my power is enough for detecting differences between groups.
I tried g power but it only gives you the power for the omnibus test.
Any ideas on how to do it? Would I end up having a power value for each of the comparissons?
Thanks in advance