Fully Recursive Model and Perfect Fit PreviousNext
Mplus Discussion > Structural Equation Modeling >
 Rebecca Suffness posted on Tuesday, September 18, 2018 - 2:29 pm
I'm testing what I thought was a fully recursive, cross-lagged model with longitudinal data, but now I'm not sure. Are within-time correlations the same as direct pathways between the variables at the same time point?

Also, a member of my dissertation committee thought that the fully recursive model should have perfect fit. I know this is the case if the model is saturated, but my model has something like 20 df. Should a fully recursive model have perfect fit or is it just if it's saturated? And if my model is fully recursive, why is it not saturated?
 Bengt O. Muthen posted on Tuesday, September 18, 2018 - 5:37 pm
If you have a model where the variables have the relations

T1 -> T2 -> T3

the model is not saturated because it doesn't include

T1 -> T3

Also, I assume all variables in your model are observed - otherwise it would also not be saturated.
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