It is appropriate. The F-test is not the same as t-test, so it is
not totally surpising that you get different results
Hello all,
I am running a gyrification analysis between 3 groups.So I modeled my GLM like the one on this page: https://surfer.nmr.mgh.harvard.edu/fswiki/Fsgdf3G0V
I was wondering if it is correct to run a Monte-Carlo correction on the results of the Main effect of group (contrast 4 on the page), which represents an F test if I am correct.
I use the line mri_glmfit-sim --glmdir Results.rh.00.Groupeffectseul --cache 2 abs --cwp 0.05 --2spaces
I get no sig Monte-Carlo corrected results on the main effect of group whereas I find interesting sig results in the one-by-one contrast, which is a bit surprising.
Thank you for your answer.
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