Hello, It doesn't appear that my question posted to the forum. Is there anything I need to do in order for the question to post?
Thanks, Elizabeth On Wed, Sep 28, 2016 at 6:03 PM, Elizabeth Bartlett < elizabeth.bartl...@stonybrook.edu> wrote: > Hello all, > > > I am using mri_glmfit (DODS method) to run a CT analysis with 2 groups and > 4 covariates and have a couple of questions regarding the statistical tests > performed within the group analyses: > > > > 1. Can Freesurfer test the change in model fit or delta R-squared in a > hierarchical regression? As far as I can tell, there is only simultaneous > regression. Alternatively, can I change the Sum of Squares Type to Type 1 > (I think default is Type 3) to simulate a hierarchical regression? > > 2. I think the default model in FreeSurfer accounts for all other main > effects. But, does it also account for all 2 and 3 way interactions, > whether or not I specify any? In other words, is the default a fully > factorial model? > > > Thank you very much for your time! > > -Elizabeth >
_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
