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  

Previous Message Next Message
Message List New Topic Print View
|
Peter Molfese
August 09, 2013 03:31PM
Hi Elissa,

Some of the interpretation depends on your model. The F-stat tests the difference between the restricted-model and the full-model. If the difference between those two models is one variable, then the Coef/Tstat map will be the same as the F-stat map, except that the t-stat will show the direction (See: [afni.nimh.nih.gov]).

When viewing the data, use the Coefficient and the respective T-stat. You can interpret them as a standard regression analysis at each voxel. There is also a helpful PDF with several examples that may help: [afni.nimh.nih.gov]

Depending on your design, other AFNI tools may yield easier interpretations! If you have further questions, post your script and we can work from there!

Peter



Edited 2 time(s). Last edit at 08/09/2013 07:23PM by Peter Molfese.
Reply Quote
RSS
Subject Author Posted

3dRegAna Multiple Linear Regression Analysis Basics

Elissa August 08, 2013 07:57PM

Re: 3dRegAna Multiple Linear Regression Analysis Basics

Peter Molfese August 09, 2013 03:31PM