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
July 30, 2013 10:50AM
Jason,

I'm not so sure why FMRI power analysis would be dramatically different from the situation in other fields, nor do I see any need to write a special power analysis tool for FMRI data analysis. As long as you have enough information (effect size, standard deviation, desired significance level, power or sample size at the region of interest in the brain), you can always use online tools such as

[homepage.stat.uiowa.edu]

Or, if you prefer, you can use R package pwr to easily get what you want.

Hope this helps!

Gang



Edited 1 time(s). Last edit at 07/30/2013 11:33AM by Gang.
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Subject Author Posted

Power calculation

Anonymous User July 30, 2013 04:54AM

Re: Power calculation

gang July 30, 2013 10:50AM