Specifically, I fit a model as well as a saturated model. When calling summary, I pass the -2LL and DF from the saturated model, with mxCompare, I compare my model with the saturated. Here are the results, everything else is as expected. Am I missing something?
minus2LL df AIC diffLL diffdf p
1 5318 742 3834 NA NA NA
2 5323 744 3835 5.35 2 0.0691
A reproducible example is provided in the attached script. I am using r57586 on Windows x64 with OpenMx_999.0.0-1661.