Calculating results in probability scale PreviousNext
Mplus Discussion > Latent Variable Mixture Modeling >
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 Anonymous posted on Tuesday, July 24, 2012 - 9:01 am
I am looking for a guide as to how Mplus calculates 'results in probability scale' having estimated the latent class model. Can you advise?
 Linda K. Muthen posted on Tuesday, July 24, 2012 - 10:53 am
The formula is

p = 1 / (1 + exp(threshold))
 Anonymous posted on Tuesday, July 24, 2012 - 11:41 am
Thank you. And how are the class membership probabilities calculated?
 Bengt O. Muthen posted on Tuesday, July 24, 2012 - 12:00 pm
Mplus prints estimates of [c#1 c#2...]; that is the logits corresponding to the intercepts/means of the multinomial regression on covariates (no covs implies that the intercepts are the means). Then use UG Chapter 14 formulas on pages 441-445 to translate from those logits to probabilities.
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