AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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February 07, 2023 11:07AM
Hello AFNI team (probably Gang smileys with beer),

If you are performing a t-test (3dttest++ for example) between two groups of old and young age.
Would you add age as a covariate?
I would bet not since age is not independent of the 2 variables tested right?
I just wanted to be sure,
Thank you
Clément
Subject Author Posted

3dttest++ and covariate

Doughboys February 07, 2023 11:07AM

Re: 3dttest++ and covariate

rick reynolds February 07, 2023 01:56PM

Re: 3dttest++ and covariate

Doughboys February 08, 2023 04:34AM