Dear Chris, To get predicted probabilities from an ordered probit, use the simqi command. The "sim" means simulate and the "qi" is for quantities of interest. sumqi does something slightly different: it summarizes simulations that have already been stored as variables in your dataset. It works a bit like Stata's summarize command, and it does not allow the pr option. If you remove "pr" from the command you typed, and simply enter sumqi b1 b2 b3 b4 b5, you will get means and confidence intervals for the simulated parameters that are stored in b1, b2, b3, b4, and b5. I hope this helps. Thanks for your interest in Clarify. Mike Tomz Stanford University Chris O'Keefe wrote on 9/17/2007 5:59 AM: -- Clarify mailing list served by Harvard-MIT Data Center [Un]Subscribe/View Archive: http://lists.gking.harvard.edu/?info=clarify