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William P. Skorupski

School of Education - Educational Psychology
Associate Professor
Ed.D., Psychometric Methods, University of Massachusetts Amherst
Primary office:
Joseph R. Pearson Hall
Room 639
University of Kansas
1122 West Campus Rd
Lawrence, KS 66045-3101

William Skorupski is an associate professor of Research, Evaluation, Measurement, and Statistics in the School of Education at the University of Kansas. He teaches courses in item response theory (IRT), classical test theory, computer programming, ANOVA, regression, and multivariate statistics. His research focuses on applications of IRT, the evaluation of standard setting processes, the use of Bayesian statistics for solving practical measurement problems, and the implementation and estimation of innovative measurement models. Dr. Skorupski received his Ed.D. in Psychometric Methods from the University of Massachusetts Amherst in 2004.

Dr. Skorupski specializes in item response theory and applications, psychometric methods, scaling and test score equating.


Ed.D., Psychometric Methods, University of Massachusetts Amherst

B.S., Educational Research and Psychology, Bucknell University



EPSY 811:Analysis of Variance

EPSY 905:Multivariate Analysis

EPSY 921:Theory and Applications of Educational Measurement

EPSY 922:Item Response Theory


My primary research interests are in applications of Item Response Theory, including test score scaling, equating, and robust methods of parameter estimation. Additional areas of research interest include the use of Bayesian statistics for solving practical measurement problems and the implementation and evaluation of innovatie measurement models, including computer-based tests and performance assessments

The specialist program in school psychology is approved by the National Association of School Psychologists
School of Education is 10th among public universities for its master’s and doctoral programs
—U.S. News & World Report
Doctoral programs in school psychology and counseling psychology are accredited by the American Psychological Association
Involved in $22 million project to create new testing system for special education students
Robert Harrington is creating a certification program in bullying prevention for educators
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