I have a question on using Clarify for probabilities with my data set: Do I have to do a "setx mean" before I setx each category of my predictor variable for individual probabilities? For example: setx mean setx ideology 1 simqi setx mean setx ideology 2 simqi setx mean setx ideology 3 simqi then setx mean setx partyid 1 simqi etc.etc. I am interested in getting the correct probabilities for each category of my independent variables. I ask b/c I get different probabilities when I don't set all other predictors to their means each time before setting the specific category of each of my predictor variables. I don't know method is correct. I looked on pp. 11 and 17 of your Clarify (2003) website text and wasn't sure. I think I want to set all predictors at their means each time prior to setting each category and then run the simulation to get correct result (like above). This is my first time using clarify. Please respond. Thank you. Rita Griffin Houston ( dinogrl7(a)houston.rr.com or rbgedu00(a)houston.rr.com. tele: 713-629-5545).