Dear Drs. Muthén, is it possible in MPlus to obtain the SRMR fit index for a measurement model with ordinal categorical variables and the WLSM estimator? If not, is it at all possible to obtain or calculate the SRMR for ordinal data? Thanks!
I believe we do SRMR for ordinal variables. It is not done for models with thresholds or covariates however. The default is to include thresholds. You can add MODEL = NOMEANSTRUCTURE to the ANALYSIS command to avoid having thresholds in the model.