Re: [Freesurfer] Interpreting Covariate Paired Analysis Results

2022-01-02 Thread Douglas N. Greve
Assuming you used y = pre-post, then the correlation is the correlation between y and age, so if it is positive it means that the pre-post difference is increasing with age On 12/16/2021 2:45 PM, PDMD SRALab wrote: External Email - Use Caution We are using the paired analysis appr

Re: [Freesurfer] Interpreting Covariate Paired Analysis Results

2021-12-16 Thread PDMD SRALab
External Email - Use Caution We are using the paired analysis approach as outlined here ( https://secure-web.cisco.com/13QTl-VyyAVXvg-0pygxBoVuOM74Yxhp2T1X_88Q9Q9Lh3ZcBaZjKeNXs8tO5B1CS4fZtvL61gNWMgdPO9MHB-7POi_LxXSWFzwW6PtmuEw4Guc640z00rTXgigZmocb05oKYXRzVyV2jqBD-8cyE_B7Z6jdYzIaLDI

Re: [Freesurfer] Interpreting Covariate Paired Analysis Results

2021-12-10 Thread Douglas N. Greve
Can you say more about your approach? Are you subtracting the two time points explicitly and computing a paired t? Or are you using the repeated measures anova approach. Send the FSGD file On 11/30/2021 11:04 AM, PDMD SRALab wrote: External Email - Use Caution We are using a paired a

Re: [Freesurfer] Interpreting Covariate Paired Analysis Results

2021-12-07 Thread PDMD SRALab
External Email - Use Caution Hello all - reposting this to see if anyone can help - thanks! We are using a paired analysis approach to study cortical thickness in a dataset with 2 timepoints (called pre-protocol and post-protocol). Regarding the mean cluster summary (contrast: [1

[Freesurfer] Interpreting Covariate Paired Analysis Results

2021-11-30 Thread PDMD SRALab
External Email - Use Caution We are using a paired analysis approach to study cortical thickness in a dataset with 2 timepoints (called pre-protocol and post-protocol). Regarding the mean cluster summary (contrast: [1 0]), we understand positive values to mean pre > post (thinning)