Dear Expert
I have 2 groups data at time 1 and time 2.
I've analysed the group by time interaction using this model:
http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/GLM#ANOVA:_2-groups.2C_2-levels_per_subject_.282-way_Mixed_Effect_ANOVA.29
But now I intend to make 2 changes:
(1) add "time 1 age" as a covariate
(2) assume unequal variances between groups, so in the Group variable of the design, I am going to put 1 for group 1 and 2 for group 2.
Would you please let me know how should I change the EV settings?
Thanks!
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