afni.nimh.nih.gov

Bob,

We routinely calculate an effect size measure (eta squared), and use this as the intensity value for our pictures of group effects (within and between group). If we had a DF subbrick as output from 3dttest, we could use this to create an eta squared map that we could then threshold in some reasonable way. This would be a helpful feature for us to use in combination with the -unpooled option.

Thanks,

Lisa