There is no evidence that the 2007 law that placed public schools under mayoral control has been a factor in improved standardized test scores, according to a major independent study of D.C. school reform. Here are standardized test score changes between 2007 and 2009:
SOURCE: National Center for Education Statistics | The Washington Post - Mar. 5, 2011
Study: Tests say little about student learning Article | Rising standardized test scores, often cited by D.C. officials as evidence of an improving school system, are of limited value in determining whether students are actually learning more, according to the first major independent study of D.C. school reform.