Measurement model fit vs Structural m... PreviousNext
Mplus Discussion > Structural Equation Modeling >
 Kostas Papadopoulos posted on Tuesday, October 07, 2008 - 12:42 pm

As most papers suggest there should be a two-step approach for SEM

a) Measurement model
b) Structural model

I have read many papers that mention two times the measures of fit (RMSEA,etc) -> one for (a) and one for (b) (with different values)

1)Is that mentioning correct? Aren't measures of fit appropriate only for the overall model? Are they different in values each time?

2)In MPLUS i can only see overall model measures of fit. Where can i find the measures of fit for (a) and (b) for my SEM model?

Thank you
 Linda K. Muthen posted on Tuesday, October 07, 2008 - 1:21 pm
I would imagine that the researchers first get a well-fitting measurement model (BY statements in Mplus) and report the fit from that analysis. It would not make sense to have a structural model using latent variables that are not well-fitting. Then add the structural part (ON statements in Mplus) and report the fit for that part of the model.
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