afni.nimh.nih.gov

For your second model, let me use the mental health symptoms dep_2 as an example. Suppose that you have the following header for your data table:

Subj ROI beta epii IA dep_2
...

1) Y in the RBA script is 'dep_2'
2) Center beta and epii properly and get the product of the two, and add it as the interaction between the two variables (column 'IA' above)

Does this make sense?

Gang



Edited 1 time(s). Last edit at 04/01/2021 01:23PM by Gang.