Hi fsl experts,
I applied a whole brain mask in easythresh to explore group mean of brain activity. The third level Feat design matrix is simple: one EV of group, two contrasts for both positive and negative mean of brain activity and one F contrast.
From the high level of Feat results: zfstat1, zstat1,zstat2, I applied the easythresh with z=1.64 and p=0.05. The weird thing is I do find significant results for F test (zfstat1), however, not in both t test. Does anyone know if I made mistake?