Re: [Freesurfer] Qdec: group differences covaring for age and sex {Disarmed}

2015-09-22 Thread pablo najt
> Date: Mon, 21 Sep 2015 17:39:14 -0400 > Subject: Re: [Freesurfer] Qdec: group differences covaring for age and sex > > Yes, it is addressing that question. The contrast should be the same as > your Group Diff below. Although I'm not sure you're using the proper > design. It

Re: [Freesurfer] Qdec: group differences covaring for age and sex {Disarmed}

2015-09-22 Thread Douglas Greve
? Thanks, Pablo qdec.table example from FSpage > To: freesurfer@nmr.mgh.harvard.edu > From: gr...@nmr.mgh.harvard.edu > Date: Mon, 21 Sep 2015 17:39:14 -0400 > Subject: Re: [Freesurfer] Qdec: group differences covaring for age and sex > > Yes, it is addressing that question. T

[Freesurfer] Qdec: group differences covaring for age and sex

2015-09-21 Thread pablo najt
Hello FS experts,I would like to understand the results from qdec in a GLM model with Group (PT/HC), and two covariates (Age, gender).I set up my contrast as follow: Group DiffHC PT AgeHC AgePT SexHC SexPT 1 -10 0 0 0 Group x Age effectHC PT AgeHC

Re: [Freesurfer] Qdec: group differences covaring for age and sex

2015-09-21 Thread Douglas N Greve
Yes, it is addressing that question. The contrast should be the same as your Group Diff below. Although I'm not sure you're using the proper design. It looks like you are using Sex as a continuous covariate? That is not correct. It should be discrete. So you should have 4 classes (HC-M, HC-F,