6 Nov
2015
6 Nov
'15
6:14 p.m.
Dear FreeSurfer experts,
I have a group variable (X) with two levels and I want to test if there is a curvilinear interaction with age (Z). Can this be tested in FreeSurfer?
Specifically, the model would be
Y = b0 + b1X + b2Z + b3Z*Z + b4X*Z + b5X*Z*Z + error
I want to test b5 while controlling for b0-b4.
Many thanks! Daniel