Dear Experts,
I have 2 groups - controls (22 subjects) and patients (19 subjects) with mean
ages that are not significantly different, though ranges/median are. I want to
compare cortical thickness between groups while allowing for age (age as
nuisance factor) but also want to see if there is a
On 10/16/2012 02:08 PM, Mahinda Yogarajah wrote:
> Dear Experts,
>
> I have 2 groups - controls (22 subjects) and patients (19 subjects) with mean
> ages that are not significantly different, though ranges/median are. I want
> to compare cortical thickness between groups while allowing for age
Dear Doug,
Many thanks for reply. Given the age-group interaction, and the fact that even
when age is demeaned it simply means a difference in thickness will be tested
for at age=mean age (as opposed to age=0) can I at least interpret the findings
when using DODS model with age as a nuisance
On 10/16/12 8:27 PM, MAHINDA YOGARAJAH wrote:
> Dear Doug,
>
> Many thanks for reply. Given the age-group interaction, and the fact that
> even when age is demeaned it simply means a difference in thickness will be
> tested for at age=mean age (as opposed to age=0) can I at least interpret the
