Shudong Wang, PhD
Senior Research Scientist II
Dr. Wang is a Senior Research Scientist II at NWEA, and his primary research interests include computerized adaptive testing and generalized linear mixed model applications in educational measurement and psychometric research. Prior to joining NWEA, Dr. Wang was a Senior Psychometrician at ETS. He holds a Ph.D. in Educational Research Methodology from University of Pittsburgh.
Effects of Ignoring Discrimination Parameter in CAT Item Selection on Student Scores
A Comparison of Different Reduction Methods for Bias of Maximum Likelihood Estimator of Student Ability Based on Graded Response and Generalized Partial Credit Models