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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April 12, 2013 05:53PM
I tried your data with 3dttest++, 3dMEMA, and 3dMannWhitney, and the three results are pretty much compatible with each other. There are two reasons for the lack of power in the group difference:

1) the number of subjects in the second group is too small;
2) The cross-subjects variability in the second group is way much bigger than the first one, and this is especially demonstrated from the 3dMEMA output.

Gang
Subject Author Posted

comparing 2 groups

Darvish April 11, 2013 02:36PM

Re: comparing 2 groups

gang April 11, 2013 02:43PM

Re: comparing 2 groups

Darvish April 11, 2013 03:24PM

Re: comparing 2 groups

gang April 11, 2013 04:03PM

Re: comparing 2 groups

Darvish April 12, 2013 11:37AM

Re: comparing 2 groups

Aaron April 12, 2013 11:39AM

Re: comparing 2 groups

gang April 12, 2013 02:11PM

Re: comparing 2 groups

Aaron April 12, 2013 04:21PM

Re: comparing 2 groups

gang April 12, 2013 05:53PM

Re: comparing 2 groups

Aaron April 13, 2013 10:05AM