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

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gang
September 26, 2013 09:22AM
John,

You can use 3dttest++ to

1) run one-sample t-test and find the average effect of each condition within each group;

2) run paired t-test and compare any two conditions within each group;

3) run two-sample t-test and compare the two groups under each condition; or

4) un two-sample t-test and compare the two groups for any liner combination of multiple conditions (from the GLTs).

Alternatively you can use 3dANOVA3 -type 5 to get all you want in *one* analysis *if* you have equal number of subjects across groups. If you have unequal number of subjects across groups, use 3dMVM.

Gang
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2nd level group contrasts

John September 25, 2013 12:51PM

Re: 2nd level group contrasts

gang September 26, 2013 09:22AM