Robert Mislevy holds the Frederic M. Lord Chair in Measurement and Statistics at Educational Testing Service. He is also Emeritus Professor of Measurement, Statistics, and Evaluation (EDMS) at the University of Maryland, College Park, with affiliations in Second Language Acquisition and the Joint Program in Survey Methods. He earned his Ph.D. in Methodology of Behavioral Research at the University of Chicago in 1981. Mislevy’s research interests center on applying recent developments in statistical methodology and cognitive research to practical problems in educational assessment. His work has included a multiple-imputation approach for integrating sampling and test-theoretic models in the National Assessment of Educational Progress (NAEP), a Bayesian inference network for updating the student model in an intelligent tutoring system, and an evidence-centered design framework for assessment. He has recently published books on Bayesian Networks in Educational Assessment, Bayesian Psychometric Modeling, and Sociocognitive Foundations of Educational Measurement. Among his honors and awards is the American Educational Research Association’s Raymond B. Cattell Early Career Award for Programmatic Research, the National Council of Measurement in Education’s Award for Technical Contributions to Educational Measurement (three times), AERA’s Lindquist Award, and the International Language Testing Association’s Samuel J. Messick Memorial Lecture Award. In 1992, he was elected president of the Psychometric Society. In 2003, he was presented the National Council of Measurement’s Award for Career Contributions to Educational Measurement. He has served committees of the National Research Council on issues concerning assessment, instruction, and cognitive psychology, and was a primary author of final report of the National Assessment Governing Board’s Design Feasibility Team.