Dears SPMers,
I ran a repeated measures flexible factorial anova with the within subject factor condition (repetition) (3 levels) & the between subject factor group (2 levels) following main effects & interactions:
Main effect1 subject
Main effect 2 group
Main effect 3 condition (repetition)
Interaction 2 x 3 (group x repetition)
the F-contrast for the group x repetition effect revealed significant interaction effects.
Now: how can I further analyses the direction of the interaction effect? - My Ideas:
1. t-contrast to test for an directional effect
2. plot the responses
Would it be valid? And regarding plotting the responses: should I plot the F contrast or the t-contrast (or is it the same?)
Thanks in advance & kind regards
ben
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