27 Mar
2013
27 Mar
'13
7:02 a.m.
Dear all,
I've a question regarding computing correlations with cortical thicknesses on the surface; Suppose I have two variables for each subject: (age and weight) and I want to compute the correlation between cortical thickness and weight, corrected for age.
Option 1: Fsgd contains: Variables weight Contrast file contains: 0 1
Option 2: Fsgd contains: Variables age weight Contrast file contains: 0 0 1
Is it true that the effect of age is regressed out in the second option; and it computes the correlation between CT and weight after correcting for age?
Best, Martijn