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  

|
September 28, 2007 03:16PM
What are the main effect F-tests comparing in 3dANOVA and GroupAna? Are the main effect F-tests given by 3dANOVA and GroupAna tests of a given factor vs baseline?

Example: I have a experiment with 1 between subject factor and 2 within subject factor.

Factor 1=Group (2 levels)
Factor 2 = Prediction (2 levels)
Factor 3 = Outcome (2 levels)

What is the Group Ftest giving me?
Is this test showing areas where the groups differ from one another? How is baseline taken into account?

Thanks for your help.
Subject Author Posted

F-tests in 3dANOVA and GroupAna

Laura September 28, 2007 03:16PM

Re: F-tests in 3dANOVA and GroupAna

Gang Chen October 01, 2007 10:31AM