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 Chen
August 29, 2007 03:47PM
> factor A with four levels (correct go, incorrect go, correct no-go,
> incorrect no-go) and Factor B with seven levels (i.e. subjects.)

Sounds like a 3-way 2x2x7 ANOVA (3dANOVA3 -type 4):

A - correct/incorrect
B - go/no-go
C - subject

The current practice in FMRI does not carry any intra-subject errors into the random-effect analysis with ANOVA at group level. You have reason to be concerned with unequal number of sample size across subjects, but those intra-subject errors are more or less negligible compared to between-subject variations and they are not considered in the current mode of analysis anyway.

Gang
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Subject Author Posted

unequal sampled time points between factor levels in an ANOVA

Mona August 29, 2007 02:32PM

Re: unequal sampled time points between factor levels in an ANOVA

Gang Chen August 29, 2007 03:47PM

Re: unequal sampled time points between factor levels in an ANOVA

Mona August 30, 2007 02:39PM

Re: unequal sampled time points between factor levels in an ANOVA

Gang Chen August 31, 2007 01:40PM