variety of school strategies and outcomes. In this paper, we collect unparalleled data on the inner-workings of 35 charter … schools and correlate these data with credible estimates of each school's effectiveness. We find that traditionally collected … teachers with an advanced degree -- are not correlated with school effectiveness. In stark contrast, we show that an index of …

scalable solutions. Recent evidence from 'No Excuses' charter schools - which demonstrates that some combination of school … inputs can educate the poorest minority children - offers a guiding light. In the 2010-2011 school year, we implemented five …