Christopher Nelson is Senior Research Associate at Western Michigan University's Evaluation Center, where he works on large-scale evaluations of state charter school laws. He is project manager for evaluations in Pennsylvania, Illinois, and the city of Cleveland, and has contributed to evaluation reports on charter schools in Michigan and Connecticut. Before joining The Evaluation Center, Dr. Nelson was on the faculty of the H. John Heinz III School of Public Policy and Management at Carnegie Mellon University, where he taught courses on evaluation methodology, policy analysis, and public orga...