Identifies and analyzes the key issues associated with test-based educational accountability and to chart the future of educational accountability research. This book discusses issues such as validity, test equating, growth modelling, fairness for special populations, causal inferences, and misuses of accountability data. "The book includes chapters on the context, technical and substantive issues, effects, and future directions of educational accountability, written by a veritable "Who's Who" in the field of educational measurement?Overall, The Future of Test-Based Educational Accountability does an admirable job of distilling the knowledge of many of the nation's best thinkers in educational measurement, both policy and practice."-William L. Brown, Education Review (May 2009)