Years after changing the way they pay teachers with ProComp, Denver Public Schools finally has the first round of research in showing how well it has worked. Ed News Colorado yesterday reported on the University of Colorado evaluation:
– Student growth on state reading and math exams was higher after the implementation of ProComp in 2005-06. Researchers used a measure similar to the Colorado Growth Model to analyze DPS test results from 2002-03 through 2008-09. They found all teachers’ median growth percentiles – essentially, how much teachers are moving students – increased about 4 points after ProComp.
– Teachers hired after ProComp appear to outperform those hired before ProComp. Teachers hired after Dec. 31, 2005 are required to join ProComp; it is voluntary for those already employed by DPS. Those hired under ProComp demonstrate higher first-year achievement, between 2 to 4 points in median growth percentiles, and the differences persist through the first three years.
– High-poverty schools with high levels of ProComp participation are seeing fewer teachers leave. Retention rates in schools designated “hard to serve,” which yields a $2,344 annual bonus, are still not as high as retention rates in more affluent schools. But those high-poverty schools where most teachers are in ProComp have seen a sharp increase in retention since 2006-07.
A long, long time ago — like almost three years ago!! — my Education Policy Center friend Ben DeGrow published a paper titled Denver’s ProComp and Teacher Compensation Reform in Colorado (PDF). It’s a handy reference, a milepost if you will, because much has happened since Ben wrote things like this: Continue Reading »