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  

|
May 14, 2009 06:26PM
Perhaps another point to note is that the statistics output
from 3dANOVA are based on the degrees of freedom. If you
don't have very many subjects, it is likely all of your stats
will be smaller.

How many subjects do you have?

While one might expect 5% of 'noise' voxels to exceed p=0.05,
that assumes having enough subjects to make the distribution
basically normal.

Or am I off on this, Gang?

- rick

Subject Author Posted

2% of voxels reaching p < .05

cdm May 14, 2009 09:14AM

Re: 2% of voxels reaching p < .05

Gang Chen May 14, 2009 05:44PM

Re: 2% of voxels reaching p < .05

rick reynolds May 14, 2009 06:26PM

Re: 2% of voxels reaching p < .05

cdm May 19, 2009 09:04AM

Re: 2% of voxels reaching p < .05

rick reynolds May 19, 2009 10:12AM

Re: 2% of voxels reaching p < .05

cdm May 20, 2009 11:04AM

Re: 2% of voxels reaching p < .05

Bob Cox May 15, 2009 09:14AM

Re: 2% of voxels reaching p < .05

cdm May 15, 2009 09:32AM