On your post "Families entering the BS world with eyes open: know the DOWN SIDE" - I believe that overall drop rate is published by the school. It may not be super clear but shcools do reveal their drop rates.
For example, if we take PEA printed facts - in 2011/2012, total enrolment was 1,062. They sent off 308 graduates, and added 340 new students in this Fall - so they should have a new total enrolment of 1,094 in 2012/2013 but they stated in the latest brochure 1,071. Thus 23 students dropped out for whatsoever reasons - and that's 2% overall drop rate.
PEA is not known to add new students in between terms, that should be PEA's drop rate. Comments?