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  

|
September 17, 2012 07:12AM
Marwa Wrote:
-------------------------------------------------------
> In preparing the interaction term for a PPI
> analysis, does it matter which condition you
> assign '1' and which you assign '-1'? I.E., does
> the interpretation remain the same whether A and B
> conditions are labeled 1 & -1 or -1 &1?

Essentially it does not matter as long as you keep consistent across subjects. Of course it will affect the final interpretation with regard to A-B or B-A.

Gang
Subject Author Posted

PPI-interaction term

Anonymous User September 14, 2012 05:11PM

Re: PPI-interaction term

gang September 17, 2012 07:12AM

Re: PPI-interaction term

Anonymous User September 17, 2012 12:17PM

Re: PPI-interaction term

Anonymous User September 18, 2012 12:29PM

Re: PPI-interaction term

gang September 18, 2012 12:34PM

Re: PPI-interaction term

Anonymous User September 18, 2012 02:19PM