GMM with diff. shapes (linear, quadra... PreviousNext
Mplus Discussion > Latent Variable Mixture Modeling >
 Johannes Meier posted on Monday, July 16, 2012 - 1:30 pm

is it possible to estimate a GMM in which the trajectories of one class follow a linear shape, in a second class a quadratic shape and in a third class a s-shape?


Best regards,
 Linda K. Muthen posted on Monday, July 16, 2012 - 4:26 pm
You should specify the most general growth model in the overall part of the model and make modifications in the class-specific parts of the model. For example, if you specify a quadratic model in the overall part of the model and want a linear model for one class, fix the mean and variance of the quadratic growth factor to zero in that class.
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