ELAINE ALLENSWORTH, PHD is the Executive Director of UChicago CCSR. She conducts research on factors affecting school improvement and students' educational attainment, including high school graduation, college readiness, curriculum and instruction, and school organization and leadership. MACARENA CORREA is a former research analyst at UChicago CCSR. She eceived her BA in psychology from Harvard College and her EdM from the Harvard Graduate School of Education (HGSE) where her focus was administration, planning, and social policy. STEVE PONISCIAK is an Associate Researcher at the Wisconsin Center for Education Research (WCER). He works in the Value Added Research Center at WCER and in the Department of Applied Research at Chicago Public Schools. He earned a BS in mathematics from the University of Notre Dame and earned his PhD from the Institute of Statistics and Decision Sciences at Duke University, where his dissertation was focused on Bayesian analysis of teacher effectiveness. The University of Chicago Consortium on Chicago School Research (UChicago CCSR) builds the capacity for school reform by conducting research that identifies what matters for student success and school improvement. Created in 1990 after the passage of the Chicago School Reform Act that decentralized governance of the city's public schools, UChicago CCSR conducts research of high technical quality that can inform and assess policy and practice in the Chicago Public Schools. UChicago CCSR studies also have informed broader national movements in public education. UChicago CCSR encourages the use of research in policy action and improvement of practice but does not argue for particular policies or programs. Rather, UChicago CCSR helps to build capacity for school reform by identifying what matters for student success and school improvement, creating critical indicators to chart progress, and conducting theory-driven evaluation to identify how programs and policies are working.