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.
Sorry I should have looked into this more closely before posting. It seems that the SEs for the results in probability scale can be obtained using the delta method and the output in TECH3. Thanks, Peter
I am running a three-step LPA using syntax that I have successfully used before and the output is not giving me the results in probability scale. I have checked that I have not made any mistakes in the syntax, and it's the same just with different variable names. I've tried running the LPA using BCH, R3STEP, and DE3STEP, and nothing is giving me the full output with the results in the probability scale. I can send my syntax but unfortunately cannot send my data as they're federally restricted data and my license prohibits that.
Thanks for the quick response. My outcomes are continuous (high school GPA and number of courses), so BCH should be OK. I re-ran and still am not getting the results in probability scale. I'm sort of at a loss for what I'm doing differently and wrong.
A colleague recommended (and I've been reading about) the manual 3-step approach. Might that be an appropriate solution here?
Thanks, I will look at the note and keep working. Where do I find comparable output to help me interpret the nature of the classes? (Sorry, I'm used to working with LCA, this is my first time with LPA...)