Anthony Coy posted on Thursday, October 06, 2011 - 10:38 am
I am working on examining partner effects (similar to the actor-partner interdependence model) using observed categorical variables and interactions of those variables. Note: I created my interaction terms in the design statement. When I run the model, it says that it terminated normally and provides me with the standard output but doesn't provide the chi-squared, CFI, TLI or RMSEA statistics with the message that, "ROBUST CHI-SQUARE IS NOT DEFINED DUE TO NONPOSITIVE TRACE." This discussion board is the only place I've seen a nonpos trace mentioned and I'm not sure what it means. Any help you could provide would be greatly appreciated!