They are not identical, for sure. In general, I discourage people from
modeling categorical variables (eg, Group1/2 below) as continuous
variables because you make assumptions that might not be reasonable (eg,
females will have twice the thickness as males). I would use the first
method.
On
External Email - Use Caution
Hi FS support team,
I am going to be using mri_glmfit to test 1) main effects (which regions
show differences in cortical thickness between group 1 and group 2) and 2)
interaction effects (does the relationship between IV and DV depend on
moderator).
