Dear freesurfer experts,
i am really a newbie in freesurfer.
I want to compare the thickness between different ages.
Is it correct to use gender as fixed factor, to look for its influence on thickness ?
If i find no effects of gender on thickness i can put the factor gender out of the model ?
Otherwise if there will be effects of gender on thickness it remains in the model. So that the effect of age on thickness
can be questioned like this:
Does the correlation between thickness and age, accounting for gender, differ from zero?
Best regards
Daniel