afni.nimh.nih.gov

In our study we have 4(levels) groups and 2(levels) conditions so we looked at the main effect of group x condition.
Now we want to look at the post-hoc that is the group differences between any 2 groups, to do that we have extracted the beta values form the regions of group x conditionresults and performed ANOVA in SPSS.
Would this be a right way of showing the post-hocs or should we just do the post-hoc ttest in AFNI using 3dLME model of group x condition?

Jung