Dear Fsl users
I need help running a second level repeated measures anova with two groups.
i have a Between Subject factor: Patient and Control, Two within Subject Factors: Gaze (Direct and
Averted) and Emotion(Anger and Fear). So for each subject, i have four copes representing
Anger Direct, Anger Averted, Fear Direct and Fear Averted.
I want to test for Main Effect of Group, Main Effect of Gaze and Emo and Interaction.
i am not sure if this design is possible with FSL and i combined the two within factors
as one factor condition.
The design that i have come up with is:
AD AAv FD AD2 AAv2 FD2 cnt pat
cntcope1 1 0 0 0 0 0 1 0
cntcope2 0 1 0 0 0 0 1 0
cntcope3 0 0 1 0 0 0 1 0
cntcope4 0 0 0 0 0 0 1 0
patcope1 0 0 0 1 0 0 0 1
patcope2 0 0 0 0 1 0 0 1
patcope3 0 0 0 0 0 1 0 1
patcope4 0 0 0 0 0 0 0 1
EVs 1-3 represent the 1x4 anova design for the control group
EVs 4-6 represent the same for patient group
Evs 7-8 Individual subject effects
contrasts:
ME group: Ftest (1 1 1 -1 -1 -1 0 0)
ME Cond: Ftest (1 0 0 1 0 0 0 0,
0 1 0 0 1 0 0 0,
0 0 1 0 0 1 0 0)
Interaction:Ftest (1 0 0 -1 0 0 0 0,
0 1 0 0 -1 0 0 0,
0 0 1 0 0 -1 0 0)
is this design correct? is there another way to get the same effects?
thanks in advance
kosha
--
Kosha Ruparel
Computer Programmer/Analyst
Department of Psychiatry
University of Pennsylvania
3400 Spruce St. - 10 Gates
Philadelphia, PA 19104
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