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.
My previous answer would be not true if I had multiple lags. The reason is that the degree of freedom for the numerator in F test would be the number of lags. Under such circumstances I would have multiple t values corresponding to the number of lags, and F = t^2 does not hold any more.