Dear FS team, I would like to make an analysis between a Patients Group and a Control Group. This study is focused on identifying if there are differences in volume between both groups. I want to regress out the effects of gender, age and IQ.
My designed matrix has the following structure: GroupDescriptorFile1 Class PatientMale Class PatientFemale Class ControlMale Class ControlFemale Variables Age IQ Input subject1 PatientMale 25 110 Input subject2 ControlMale 30 90
I was thinking about a Contrast Matrix like this: 0.5 0.5 -0.5 -0.5 0 0 0 0 0 0 0 0 However, looking for some information I discovered that it only compares volume of two groups at the naissance because it is only comparing intercepts. Therefore, how I could make a comparison between volumes of two groups in general? Thank you, Laura