Dear FSL experts
I performed a one-way four level ANOVA by using GLM_gui and Randmise command.
I design the matrix and contrast as the GLM manual:
F
c1 1 0 0 -1 1
c2 0 1 0 -1 1
c3 0 0 1 -1 1
I selected both F and c1, c2, c3 (I understand this as t tests). And got one *fstat map and three *tstat maps.
There are not significant results in f-map. However, the tstat map did show significant results. Thus, I am confused to the relation between fstat and tstat. I thought the tstat is a post-hoc of fstat. If the F-test is non-significant, how the t-test could be significant? or what the meaning of this t-test?
Any comment would be appreciated.
Gong-Jun JI
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