Notes on Contributors

Jessica J. Andrews is an Associate Research Scientist in the Computational Psychometrics Research Center at Educational Testing Service (ETS) in Princeton, NJ. She received her Ph.D. in Learning Sciences at Northwestern University. Her research examines the cognitive processes underlying collaborative learning, and the use of technological environments (e.g., simulations, learning management systems) in supporting student learning and assessing individuals' cognitive and noncognitive (e.g., collaborative) skills.

Ryan S. Baker is Associate Professor of Cognitive Studies at Teachers College, Columbia University, and Program Coordinator of TC's Masters of Learning Analytics. He earned his Ph.D in Human-Computer Interaction from Carnegie Mellon University. Dr. Baker was previously Assistant Professor of Psychology and the Learning Sciences at Worcester Polytechnic Institute, and served as the first Technical Director of the Pittsburgh Science of Learning Center DataShop, the largest public repository for data on the interaction between learners and educational software. He was the founding president of the International Educational Data Mining Society, and is currently Associate Editor of the Journal of Educational Data Mining. He has taught two MOOCs, Big Data and Education (twice), and (co-taught) Data, Analytics, and Learning. His research combines educational data mining and quantitative field observation methods to better understand how students respond to educational software, and how these responses impact their learning. He studies these issues within intelligent tutors, simulations, multi-user virtual environments, MOOCs, and educational games.

John T. Behrens is Vice President, Advanced Computing & Data Science Lab at Pearson and Adjunct Assistant Research Professor in the Department of Psychology at the University of Notre Dame. He develops and studies learning and assessment systems that integrate advances in the learning, computing, and data sciences. He has written extensively about the use of evidence-centered design to guide development of complex educational systems as well as about the foundational logics of data analysis/data science and the methodological impacts of the digital revolution.

Isaac I. Bejar holds the title of Principal Research Scientist with Educational Testing Service (ETS) in Princeton, NJ. He is interested in improving methods of testing by incorporating advances in psychometric theory, cognitive psychology, natural language processing, and computer technology. He was a member of the editorial board and advisory board of Applied Psychological Measurement from 1981 to 1989, and was awarded the ETS Research Scientist Award in 2000. He published Cognitive and Psychometric Analysis of Analogical Problem Solving and co-edited Automated Scoring of Complex Tasks in Computer-Based Testing.

Laine Bradshaw is an Assistant Professor of Quantitative Methodology in the Educational Psychology Department in the College of Education at the University of Georgia (UGA). Her primary research focuses on advancing multidimensional psychometric methodology to support the diagnostic assessment of complex knowledge structures for educational purposes. With a Master's degree in Mathematics Education, she is also active in collaborations on interdisciplinary assessment development projects that require tailoring psychometrics to cognitive theories. Her work has been published in journals such as Psychometrika and Educational Measurement: Issues and Practice. Her early career program of research was recently recognized by the National Council of Measurement in Education's Jason Millman Award.

Gabrielle Cayton-Hodges is a Research Scientist in the Learning Sciences Group at Educational Testing Service (ETS) in Princeton, NJ. She earned her BS degree in Brain and Cognitive Sciences from MIT and her PhD in Mathematics, Science, Technology, and Engineering Education from Tufts University. Gabrielle's specialty is mathematical cognition and elementary mathematics education, focusing on the application of cognitive and learning sciences to mathematics assessment and the use of technology to support innovative approaches to gathering evidence about what students know and can do. She has a specific expertise in student understandings of numerical concepts such as place value and the use of multiple representations in mathematics and has also spent several years studying early algebra and learning progressions in the understanding of area and volume.

Sun-Joo Cho is an Assistant Professor at Peabody College, Vanderbilt University. Her research topics include generalized latent variable modeling and its parameter estimation, with a focus on item response modeling.

Ying Cui is an Associate Professor at the University of Alberta. Her research interests include cognitive diagnostic assessment, person fit analysis, and applied statistical methods.

Paul De Boeck is Professor of Quantitative Psychology at The Ohio State University and emeritus from the KU Leuven (Belgium). He is especially interested in how psychometric models can be redefined as explanatory models or supplemented with explanatory components for applications in psychology and education.

Kristen E. DiCerbo's research program centers on digital technologies in learning and assessment, particularly on the use of data generated from interactions to inform instructional decisions. She is the Vice President of Education Research at Pearson and has conducted qualitative and quantitative investigations of games and simulations, particularly focusing on the identification and accumulation of evidence. She previously worked as an educational researcher at Cisco and as a school psychologist. She holds doctorate and master's degrees in Educational Psychology from Arizona State University.

Susan Embretson is Professor of Psychology at the Georgia Institute of Technology. Previously, she was Professor at the University of Kansas. Her research concerns integrating cognitive theory into psychometric item response theory models and into the design of measurement tasks. She has been recognized for this research, including the Career Contribution Award (2013) and the Technical and Scientific Contribution Award (1994-1997) from the National Council on Measurement and Education; the Distinguished Lifetime Achievement Award (2011) from the American Educational Research Association: Assessment and Cognition; and the Distinguished Scientist Award from American Psychological Association Division (5) for Measurement, Evaluation and Statistics for research and theory on item generation from cognitive theory. Embretson has also served as president for three societies in her area of specialization.

Gary Feng is a Research Scientist in the Research and Development division at Educational Testing Service (ETS) in Princeton, NJ. He works in the Cognitive, Accessibility, and Technology Sciences Center. He received his PhD in Developmental Psychology and MS in Statistics from the University of Illinois at Champaign-Urbana. Before joining ETS, he was a faculty member at Duke University and held visiting and research positions at the University of Michigan and the University of Potsdam, Germany. He is broadly interested in the acquisition of reading skills and neurocognitive processes in reading. His past work uses eye-tracking to examine cognitive processes of skilled and developing readers across different cultures. Gary contributes to the development of innovative literacy assessments.

Steve Ferrara was Vice President for Performance Assessment and led the Center for Next Generation Learning and Performance in Pearson's Research and Innovation Network. Steve conducts psychometric research and designs large scale and formative assessments and automated language learning systems. He specializes in principled design, development, implementation, and validation of performance assessments and in research content, cognitive, and linguistic response demands placed on examinees and predicts technical characteristics of items. Steve earned an MEd in Special Education from Boston State College and an EdS in Program Evaluation and a PhD in Educational Psychology and measurement from Stanford University.

Mark J. Gierl is Professor of Educational Psychology and the Director of the Centre for Research in Applied Measurement and Evaluation (CRAME) at the University of Alberta. His specialization is educational and psychological testing, with an emphasis on the application of cognitive principles to assessment practices. Professor Gierl's current research is focused on automatic item generation and automated essay scoring. His research is funded by the Medical Council of Canada, Elsevier, ACT Inc., and the Social Sciences and Humanities Research Council of Canada. He holds the Tier I Canada Research Chair in Educational Measurement.

Janice D. Gobert is a Professor of Learning Sciences and Educational Psychology at Rutgers. Formerly, she was the Co-director of the Learning Sciences and Technologies Program at Worcester polytechnic Institute. Her specialty is in technology-based with visualizations and simulations in scientific domains; her research areas are: intelligent tutoring systems for science, skill acquisition, performance assessment via log files, learning with visualizations, learner characteristics, and epistemology. She is also the Founding CEO of a start-up company...