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Mplus Discussion > Growth Modeling of Longitudinal Data >
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 Jonathan Codell posted on Monday, March 04, 2013 - 11:24 pm
I am evaluating the trajectory classes of psychological distress in a sample of refugees (n=107) measured across 12 time points.

When extracting trajectory classes BIC, theory, and interpretability point to a 4 or 5 class model. However when applying tech 11 to help determine the ideal number of classes, I am unable to secure a significant VUONG-LO-MENDELL-RUBIN LIKELIHOOD RATIO TEST for any number of classes.

Is this likely due to my relatively small sample size?

If sample size is a limitation for this test, does it still make sense to follow the other indicators listed above? Do you have any suggestions for addressing this issue?

Thank you.
 Linda K. Muthen posted on Tuesday, March 05, 2013 - 6:34 am
This test can have problems. The small sample size may be an issue. Use the information from the other tests and theory.
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