There has been an ongoing discussion on both the optimizer forum and the developer's mailing list about which AIC to use. This thread is here to gather the discussion in one place.
Since the major SEM packages differ in the way they calculate AIC, I proposed we print something like:
AIC (Mx) = -123456 AIC (Amos) = 654321 AIC (MPlus) = 234567 AIC (LISREL) = 132435
Let the AIC discussions begin!