Anonymous posted on Sunday, March 06, 2005 - 2:43 pm
Hello, I'm new to growth modeling. I have poisson data that I would like to examine for subgroups. The analysis that I want to perform is one that is presented by Nagin (1999). As I have read through the Mplus User's guide 3.11, which is awesome by the way, I am confused as to which GMM model I should use, and which plots command (1,2,or 3) will give a line graph with the subgroups? The key for me is to determine the subgroups. I think I understand how to put the covariates in to explain the subgroups at a conceptual level, but I need some guidance as to which model in the User's guide I should follow for the initial grouping? Thank you.
It would be Example 8.11 with the addition of covariates. The Nagin model is a LCGA not a GMM. Example 6.10 illustrates the addition of time-invariant and time-varying covariates. Ask for PLOT3. Then you will get as much as is available.
Anonymous posted on Sunday, March 06, 2005 - 3:09 pm
Thank you so much for the help and the quick response! The Mplus product is awesome.