1. Chart of the Day I (above). Detroit public charter schools out-performed traditional Detroit public schools in the last few years, and it’s not even close according to research conducted by the Mackinac Center for Public Policy’s Ben DeGrow, summarized in a blog post here: Detroit Charters Far Outperform Traditional Schools (see full reports here and here). As the data displayed above show, more than half of traditional public schools received a failing letter grade of F based on multiple years of testing data that are adjusted for student poverty rates, compared to fewer than one-quarter of charter schools receiving a failing grade. On the other hand, nearly 6 out of 10 charter schools received letter grades of A, B or C compared to fewer than 4 out of 10 traditional public schools getting a passing grade of C or better. Converted to an overall GPA on a 4-point scale, the GPA for Detroit charters was 2.26 compared a GPA of only 1.25 for Detroit’s traditional public schools.
These results are consistent with Perry’s Law: Competition breeds competence.