Estimating Residual Variances in MSEM... PreviousNext
Mplus Discussion > Multilevel Data/Complex Sample >
 Christopher R. Beasley posted on Friday, June 14, 2013 - 12:37 pm
What happens when the level 2 residual variances are requested for a 1-1-1 MSEM path model? I have noticed that this adds parameters to my model but am unsure otherwise.
 Bengt O. Muthen posted on Sunday, June 16, 2013 - 4:02 pm
You typically would want to include them in the model, although they are often close to zero.
 Christopher R. Beasley posted on Friday, June 21, 2013 - 9:45 am
The problem I have when requesting residuals for x-vars is that it appears my x-vars then get treated as y-vars.
 Bengt O. Muthen posted on Friday, June 21, 2013 - 6:35 pm
Residual variances refer to dependent variables, including factor indicators, so they don't appear for x variables. So the premise for your question is unclear.
 Christopher R. Beasley posted on Saturday, June 22, 2013 - 4:58 am
I had been working from some 1-1-1 MSEM syntax that requested residuals for x,m,&y variables. It didn't make sense to request an x variable, because it has no residual variance. That must be why Mplus is changing them to y variables. It looks like I should be able to leave that part of the syntax out. It also appears that Mplus estimates residuals for the m & y variables by default anyway, so they should be able to be left out.
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