Hi Gang,
Thanks for the explanation re: internal dummy coding for 3dMVM - very nifty!
I will try using just one model for all of my hypotheses - but since I am not interested in modeling the interaction between Group and FatherAge (i.e., I just want to regress out the effect of FatherAge as a covariate of no-interest to control for it), would the following be appropriate?
-bsVars "Group* BrainVolume+Site+MEdu+FatherAge" \
-qVars "FatherAge,BrainVolume" \
I assume I can look at the main effect of Group since Group*BrainVolume is equivalent to Group+BrainVolume+Group*BrainVolume?
Thanks!
Janelle