It is appropriate. The F-test is not the same as t-test, so it is not
totally surpising that you get different results
On 12/22/17 5:06 PM, Pauline Duret wrote:
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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