Just specify gender as a factor then look at the contrasts where it says that gender is accounted for or regressed out. There is really no difference between a factor of interest and a nuisance factor, it is only a matter of interpretation
On 11/18/2015 02:04 PM, Tesse, Marcello wrote:
Dear FreeSurfer experts,
I a PhD student at King's college London.
I am running cortical thickness analysis with QDEC.
I would like to investigate some cortical thickness differences between 2 groups,
using as nuisance factors 'age' and 'gender'.
No problem at all with age. But the gender as dicotomic variable is
listed on fixed factor in qdec, in design window.
My question is:
how can I run the analysis using 'gender' as nuisance factor??
thank you very much
MARCELLO
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