Zero class in a Two-part GMM PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
 Robert Long posted on Monday, October 21, 2013 - 10:35 am

Is it possible to specify a zero class in a two-part GMM, such that individuals that respond with zero throughout all time points are assigned to this class ? If so, what is the syntax to do this ?
 Linda K. Muthen posted on Monday, October 21, 2013 - 2:29 pm
If there is a zero class, this will be found as part of the analysis. See the following papers which are available on the website:

Kreuter, F. & Muthén, B. (2008). Analyzing criminal trajectory profiles: Bridging multilevel and group-based approaches using growth mixture modeling. Journal of Quantitative Criminology, 24, 1-31.

Kreuter, F. & Muthén, B. (2008). Longitudinal modeling of population heterogeneity: Methodological challenges to the analysis of empirically derived criminal trajectory profiles. In Hancock, G. R., & Samuelsen, K. M. (Eds.), Advances in latent variable mixture models, pp. 53-75. Charlotte, NC: Information Age Publishing, Inc.
 Robert Long posted on Monday, October 21, 2013 - 2:49 pm
Hi Linda, OK thanks. That is actually what I was hoping, but how can I see which individuals are probabilistically assigned to each class, since the "results in probability scale" are not produced with these models..
 Linda K. Muthen posted on Monday, October 21, 2013 - 11:05 pm
See the CPROBABILITIES option of the OUTPUT command.
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