afni.nimh.nih.gov

Jack,

It sounds like you have a 3 x 2 within-subject (or repeated-measures) ANOVA. If so, you can use 3dANOVA3 -type 4 to handle the data analysis. Of course, you could try 3dMVM as well, but 3dANOVA3 -type 4 would be much faster.

Gang