Growth modeling with Count data PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
 Sarah Dauber posted on Monday, October 29, 2007 - 11:12 am
I would like to run both linear and quadratic growth models using a count outcome (days paid for employment) measured at four timepoints. How do I determine which is a better fit to the data? When I try to run these models, the only fit statistics that are given are the loglikelihood and the AIC/BIC. Is it possible to get the chi-squre, CFI, RMSEA etc for this type of model?

Thank you,
Sarah Dauber
 Bengt O. Muthen posted on Tuesday, October 30, 2007 - 8:04 am
Just run the quadratic model and check if the quadratic growth factor mean is significant.

Version 5 of Mplus will have bivariate fit statistics for counts.
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