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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Galit
May 28, 2019 08:06AM
Hello AFNI experts,

How to I compare two nested models in AFNI?
More specifically: I have fitted a model using 3dMVM, which uses as predictors three between-subject variables (measured outside the scanner). I want to test for each predictor whether it has a unique contribution to the explained variability in the estimated BOLD contrast. Thus, I want to get for each voxel a p-value that reflects the comparison between the full 3dMVM model and a nested model which is the same as the big one besides one predictor removed. How do I do that?

Thank you very much,

Galit
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Subject Author Posted

How to do model comparison?

Galit May 28, 2019 08:06AM

Re: How to do model comparison?

gang May 28, 2019 05:35PM

Re: How to do model comparison?

Galit May 29, 2019 06:22AM

Re: How to do model comparison?

gang May 29, 2019 11:36AM

Re: How to do model comparison?

Galit May 31, 2019 11:24AM

Re: How to do model comparison?

gang May 31, 2019 05:57PM