It looks like you want (PF+PM)-(CF+CM) which would correspond to [0 0 0
0 1 1 -1 -1]/2. This just averages the slopes for F&M in each group,
then takes the difference between the average slopes.
doug
Katherine Reiter wrote:
> Hey freesurfers,
>
> I'm interested in running an interaction between
Hey freesurfers,
I'm interested in running an interaction between a continuous and
categorical variable, covarying for another categorical variable. I
understand that this analysis is not possible through the QDEC GUI so I am
working through the command line group analysis and setting up the contr
