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
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