Dear all,<div><br></div><div>I&#39;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.</div>
<div><br></div><div><div>Option 1: </div><div>Fsgd contains: Variables weight</div><div>Contrast file contains: 0 1</div></div><div><br></div><div>Option 2:</div><div>Fsgd contains: Variables age weight</div><div>Contrast file contains: 0 0 1</div>
<div><br></div><div>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?</div><div><br></div><div>Best,</div><div>Martijn </div>
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