I have a question about mediation analyses. Normally I work with SAS, but because I want to do a mediation analysis with a dichotomous outcome and dichotomous mediator, I switch to Mplus and trying to learn and understand this program.
For the mediation analyses, I am using WLSMV estimator, with BCbootstrap CI's. In the output I get indirect and direct results, but I have some difficulty interpreting these results. Are these direct and indirect results interpretable as an OR? Or do I have to standardize, and are the estimates then OR’s? Is it possible to say something about the effect size?
I look forward to a response and thank you in advance.
With WLSMV, you obtain probit regression coefficients which cannot be exponentiated to odds ratios. The indirect effects concern the latent response variables underlying the observed categorical variables.
For logistic regression and odds ratios, you need to use maximum likelihood estimation. You can use MODEL CONSTRAINT to specify the indirect effects according to the formulas described in the following paper on the website:
Muthén, B. (2011). Applications of causally defined direct and indirect effects in mediation analysis using SEM in Mplus
Hi. I am trying to analyze a mediation model with binary mediator and binary outcome. I used to use STATA's "binary_mediation" commend but this time I need to apply sampling weight. I wonder if I can handle this issue with M-plus. I am pretty new to this program so your advice will be really helpful.