Hi FreeSurfer Experts, I have two groups (Male and Female) and two covariates (Age and Weight). I want to test change of cortical thickness with age and weight, after removing effects of Group. In other words, is there an interaction between age and weight, regressing out the effects of groups.
How can I set up my Design Matrix to test this? Thank you, -- David S. Lee Associate Research Specialist Center for Healthy Minds University of Wisconsin - Madison (608) 890-1115
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