PGStats, That is what I am trying to estimate.  The fraction of mothers who showed improvment from initial to exit. So improvment being anything better than they're initial education level: "some high school" better than "less than 8th grade" or "high school grad/GED" better than  "some high school"  etc and so on.  I am just not sure how to code for that since they are not means, but values assigned to different categories. ... View more

I thought proc ttest was for means so I didn't think that would work. What is proc par1way?  The categories for education level are: 01: less than 8th grad 03: some high school 02: high school grad/ged 04: some college 05: two year degree 06: four year degree 07: graduate school 09: vocational school 08: unknown The mother's are asked about their education level at the intial enterance to the program and at the exit of the program. ... View more