Charter opponents have, with some exception, been quiet over today’s release of the newest CREDO study on charter-school performance. The study determined that, in the aggregate, charter school students gained more than a week’s worth of learning each year in reading on their peers in traditional public schools and performed about the same as their traditional public school peers in math (the now-famous 2009 study showed a loss of learning among charter students in both subjects).
The real test, however, will apply to charter school proponents, at least those who call themselves such. For while the overall news is good for charters, it’s clear that some states are not moving fast enough to adopt the lessons this sector of public education has learned about quality control during the past several years.
States such as Indiana, Louisiana, Massachusetts, New York, and Washington, D.C., all showed outsize academic gains in charter schools while states including Arizona, Nevada, Pennsylvania, and Texas performed weakly. It’s not for nothing that most of the states with bigger gains have been less tolerant of bad schools and have passed laws giving charter authorizers more tools to shut down the worst performers; gains from the 2009 study came in part because 8 percent of the worst schools have closed in that time. The states with little to show have, generally speaking, remained content to let the marketplace work itself out, and this has kept many bad schools in business.
To be sure, Texas...