[R] SEM model fit

I wonder if someone could explain why, when I perform confirmatory factor-analysis model using polychoric correlations why I do not get an estimated confidence interval for the RMSEA. My experience with these type models is that I would obtain a confidence interval estimate. I did not get any

[R] Extended CR model

I was wondering if someone could point me to the R package that implements the partial proportional odds (PO) model discussed by Peterson and Harrell (1990). In Harrell (2001), the model is explained in Chapt. 13. Respectfully, Frank R. Lawrence __