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Mplus Discussion > Growth Modeling of Longitudinal Data >
 Steve Weissman posted on Monday, December 04, 2006 - 4:26 am
Thanks for all of your responses thus far!

I have been running some complex growth models with interactions with few problems. But now when returning to some of the more basic modelsI am frequently getting output that says:

The standard errors of the model parameter estimates could not be computed. The model may not be identified. Check your model. Problem involving parameter [xx].

This happens particularly often when trying to look for sex differences with multi-group models, but NOT when examining the same-sex cohorts individually.

Any ideas what could be causing this?

Thanks again!
 Linda K. Muthen posted on Monday, December 04, 2006 - 8:31 am
Please send your input, data, output, and license number to Data dependent problems are hard to diagnose without more information.
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