I am running a SEM predicting three factors. There are significant correlations between the outcome variables. I tried running the model with and without the "WITH" statement specifying the correlations and the results are the same. Does Mplus automatically correlate the outcome variables regardless of if they are specified?
Check the two outputs to see whether the WITH statements are in the results in both bases. This would indicate that this is the default. I would need to have more information to answer the question without seeing the outputs.