Dear Udo,
thanks for your help.
Best,
-Lucas
> Dear Lucas,
>
> for a group comparison, you would have to model a regressor for group. If you
> have regressors for "group", "IV", "age", "gender" you'd have to set the
> contrast weight either 1 0 0 0 or -1 0 0 0 for a t-test showing group1 >
> group2 or group2 > group1 respectively, controlling for IV, age, and gender.
>
> Good luck,
>
> Udo
>
>
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