Robert Mislevy holds the Frederic M. Lord Chair in Measurement and Statistics at Educational Testing Service, and is Emeritus Professor of Measurement, Statistics, and Evaluation at the University of Maryland, 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 apply developments in statistics, technology, 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 published books on Bayesian Networks in Educational Assessment, Bayesian Psychometric Modeling, and Sociocognitive Foundations of Educational Measurement. Among his honors and awards are the American Educational Research Association’s Raymond B. Cattell Early Career Award, the National Council of Measurement in Education’s Annual Award for Contributions to Educational Measurement (four times), AERA’s Lindquist Award, the National Council of Measurement’s Award for Career Contributions, and the International Language Testing Association’s Samuel J. Messick Memorial Lecture Award. He is a past president of the Psychometric Society and has served on committees of the National Academies of Science on issues concerning assessment, instruction, and cognitive psychology.