Hello,
I am conducting an analysis using the SEM methodology. I have ordinal variables and my data are not normally distributed. I was using the ULSMV estimator, and the data come from couples, so I wanted to use the "cluster" option to nest by couples. I’m using the lavaan package, but it seems that the ULSMV estimator cannot be directly used with the cluster option, and when I try to do so, lavaan silently switches the estimator to MLR (Maximum Likelihood Robust), which is not suitable for these variables. What can I do in this situation?
Thanks in advance.