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Problems with Parameter Estimates
Growth Modeling of Longitudinal Data
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?
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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