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Bivariate latent growth with latent m...
Growth Modeling of Longitudinal Data
posted on Tuesday, September 24, 2013 - 9:13 am
Hello Drs. Muthen,
I am trying to run a bivariate latent growth model with a latent interaction between one of the intercepts and another variable that is observed (but have made it latent by fixing the variance @0). For example:
Then, I specify a latent interaction that I want to predict to a slope:
interact | interceptX XWITH z;
slopeY on interact;
I correlate the residuals across processes at each time point; however,
I get the following error message:
THE ESTIMATED COVARIANCE MATRIX COULD NOT BE INVERTED.
COMPUTATION COULD NOT BE COMPLETED IN ITERATION 1.
CHANGE YOUR MODEL AND/OR STARTING VALUES.
Any suggestions to get this model to run? It might be more helpful if I send you all my files. Please let me know and thank you in advance.
Linda K. Muthen
posted on Tuesday, September 24, 2013 - 11:35 am
Please send the output and your license number to
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