The Center for Research on Education Outcomes (CREDO) at Stanford University conducted a large-scale analysis of the impact of charter schools on student performance. The center's data covered 65-70% of the nation's charter schools. Although results varied by state, 17% of the charter school students have significantly higher math results than …

"How New York City's Charter Schools Affect Achievement" estimates the effects on student achievement of attending a New York City charter school rather than a traditional public school and investigates the characteristics of charter schools associated with the most positive effects on achievement. Because the report relies on an…

The Council of Chief State School Officers has raised some issues pertinent to the implementation of a national project to collect statistical indicators of academic achievement and to compare them across states. The United States Department of Education shares this concern, with an emphasis on sampling schools for a school level analysis which…