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Hi,

Id like to run higher-level FEAT analysis on 4 subject groups. Is the model 
below correct for investigating differences between groups and group 
averages?
Also, what would be the advantage of running F-tests also?

Many thanks,
Eva


Number of EVs = 4

Group	EV1	EV2	EV3	EV4
1	1	0	0	0
1	1	0	0	0
2	0	1	0	0
2	0	1	0	0
3	0	0	1	0
3	0	0	1	0
4	0	0	0	1
4	0	0	0	1

Contrasts = 16 		F-test = 0
	Title		EV1	EV2	EV3	EV4
C1	A>B		1	-1	0	0	
C2	B>A		-1	1	0	0
C3	A>C		1	0	-1	0
C4	C>A		-1	0	1	0
C5	A>D		1	0	0	-1
C6	D>A		-1	0	0	1
C7	B>C		0	1	-1	0
C8	C>B		0	-1	1	0
C9	B>D		0	1	0	-1
C10	D>B		0	-1	0	1
C11	C>D		0	0	1	-1
C12	D>C		0	0	-1	1
C13	A Mean	             1           0           0           0
C14	B Mean	             0           1           0           0 
C15	C Mean	             1           0           1           0
C16	D Mean	             0           0           0           1