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Comparing probit coefs with mediating...
Structural Equation Modeling
posted on Tuesday, July 05, 2011 - 8:05 am
We have a recursive pathmodel (all observed) with a dichotomous dependent variable, the IV's are continuous or dummycoded and we have one ordinal mediating variable.
Using the WLSMV-estimator, we estimate the model for two groups, obtaining total, direct and indirect effects in the form of probit coefficients.
A reviewer requested formal tests/comparisons of the size and significance of those coeficients between the two groups.
Are there suggested procedures I can look into that are applicable in this situation? Are general procedures for comparing logit/probit coefs (e.g. Allison, 1999) applicable?
Bengt O. Muthen
posted on Tuesday, July 05, 2011 - 3:21 pm
In the 2-group run you can define the indirect effects using Model Constraint and test equalities using Model Test.
posted on Wednesday, July 27, 2011 - 2:16 pm
I have a recursive path model (all observed) with a dichotomous dependent variable, the IV's are continuous or dummy coded, and the mediating variable is dichotomous.
I use the WLSMV estimator and I obtain the total, direct, and indirect effects.
I also obtain the standardized effects for the model. I am aware that the standardized effects are not valid for binary variables in the WLSMV estimator.
Is there any way I can compare the effect sizes across the continuous and binary variables, including the binary mediating variable?
Linda K. Muthen
posted on Thursday, July 28, 2011 - 3:25 pm
I don't know of any way to compare effect sizes across continuous and binary variables.
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