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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October 14, 2014 12:05PM
Hi guys,

I have a question regarding group statistics with unbalanced number of subjects in each group.
I need to run an ANOVA with factor GROUP (HV, PatientGroup1, PatientGroup2, PatientGroup3) and TASK (Speech, syllable1, syllable2).

The problem is that I cannot run 3dANOVA3 because of unbalanced number of subjects in each group (27 HV, 27 PatientGroup1, 26 PatientGroup2, 20 PatientGroup3). The third group of patients is really rare and it would be a shame to remove 7 patients from the other groups.

Can someone help me in solving this problem?
thanks

-giovanni
Subject Author Posted

Unbalanced ANOVA3

gbattist October 14, 2014 12:05PM

Re: Unbalanced ANOVA3

gang October 14, 2014 12:14PM