[Freesurfer] Fwd: sign mc-z

2011-05-19 Thread René Besseling
Dear all, A beginners question: what does the sign mean in the multiple comparison simulations? I thought it defines the side of the t-test performed on the glm parameter estimates, but since you can run the simulations for a bunch of contrasts simultaneously and since in some cases you might be

Re: [Freesurfer] Fwd: sign mc-z

2011-05-19 Thread Douglas N Greve
Hi Rene, you have the right interpretation for the sign. When you run the correction, it will be applied to all contrasts whether you want it or not. If you want a different sign, then run the correction a second time (it will create new files with new names so you don't overwrite). doug René