Robert Linn is distinguished professor emeritus of education at the University of Colorado. His research explores the uses and interpretations of educational assessments, with an emphasis on educational accountability systems. His work has investigated a variety of technical and policy issues in the uses of test data, including alternative designs for accountability systems and the impact of high-stakes testing on teaching and learning. Dr. Linn is a member of the National Academy of Education and a lifetime National Associate of the National Academies. He was former president of the American Educational Research Association (AERA) and also served as vice president of the AERA Division of Measurement and Research Methodology and vice chair of the joint committee that developed the 1985 Standards for Educational and Psychological Testing. He is a past president of the National Council on Measurement in Education (NCME), past editor of the Journal of Educational Measurement, and editor of the third edition of Educational Measurement, a handbook sponsored by NCME and the American Council on Education. He was chair of the NRC’s Board on Testing and Assessment and a member of DBASSE and the Board of the Center for Education. He has also served on many NRC committees including the Committee on Next Steps in Education Research, Practice, and Progress; the Committee on the Appropriate Uses of Educational Testing. He has a Ph.D. in educational psychology from the University of Illinois at Urbana-Champaign.