From The Los Angeles Times: A study of charter schools in 15 states and the Washington, D.C., has found that, nationally, only 17 percent of charter schools do better academically than their traditional counterparts, and more than a third deliver learning results that are significantly worse than their students would have realized had they remained in traditional public schools. The Stanford University study is one of the broadest and deepest attempts to come to grips with the progress of charter schools, in part because the researchers were able to look at test scores down to the level of individual students.