randomized study finds successful charter schools in NYC

From World...

A great experiment since most NYC charter school students are chosen by lottery. This allowed researchers from the New York City Charter Schools Evaluation Project to compare two subsets of those whose parents entered them in the lottery: those who got into a charter and those who did not.

Looking at data from 2000 to 2008, the report found that on average, a student who attended a charter school from kindergarten to eighth grade would close about 86 percent of a 35-40 point achievement gap...between affluent suburban schools and inner-city schools...