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
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