Label switching problem in mixture IR... PreviousNext
Mplus Discussion > Latent Variable Mixture Modeling >
 Ali posted on Tuesday, March 25, 2014 - 8:42 pm
I am doing the simulations for mixture IRT models. The label switching often happens.
How could I avoid the label switching while running mixture IRT models?
They way I was figuring out the problem of label switching is to look the estimates of mean then infer.
 Bengt O. Muthen posted on Wednesday, March 26, 2014 - 11:50 am
You should use the population values as start values in the MODEL command and also use the default STARTS=0.

See also the 2011 SEM article by Tueller et al on this very issue.
 Michelle Colder Carras posted on Sunday, June 08, 2014 - 1:06 pm
Thank you so much for this answer. The starts=0 was vital for me; I had tried using the exact starting values but kept having classes switch despite that.
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