Hua-Hua Chang

Section 1

Program Area: Quantitative

Professor of Psychology
Affiliated Faculty of Center for East Asian and Pacific Studies
Affiliated Faculty, Professor of East Asian Languages and Cultures
Affiliate Professor of Statistics

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Professor Chang is a practitioner-turned professor. Before moving to academia in 2001, he had worked in the testing industry for nine years, of which six years at Educational Testing Service in Princeton, NJ, and three were at the National Board of Medical Examiners in Philadelphia, PA. He is the Editor-in-Chief of Applied Psychological Measurement, past President of the Psychometric Society (2012-2013), and a Fellow of American Educational Research Association. Starting from 2008, he has been included on the "List of Teachers Ranked Excellent by Their Students" at UIUC for six consecutive years. Dr. Chang currently also serves as the director of the Confucius Institute at UIUC, and he was most recently awarded the Changjiang Scholar Chair Professorship by the Ministry of Education of PR China.

Research Description

Hua's research has focused primarily on improving large scale assessments, specifically on issues emerging from the wide-ranging implementation of computerized testing. His interests are broad, encompassing both theoretical development and applied methodologies, including Computerized Testing , statistically detecting biased items, Cognitive Diagnosis, and asymptotic properties in item response theory. Most recently, his work has been concentrated on developing item selection algorithms for Computerized Adaptive Testing (CAT) to more effectively select test items sequentially that adapts to the examinee's trait level. Although the research of CAT was originally inspired by problems in high stake testing, its findings have been beneficial to other domains such as quality of life measurement, patient report outcome, k-12 accountability assessment, and survey research.


  • PhD in Statistics (UIUC, 1992)
  • Dip. of Math. (East China Normal University, 1980)


  • Classical Test Theory, Item Response Theory, Measurement & Evaluation, Measurement & Test Development Lab, Computerized Testing
  • Introduction to Statistics, Correlation & Regression, Multivariate Methods, Hierachical Linear Models
  • Learning Theory



  • Cheng, Y., and H-H. Chang. Advanced methodologies to support both summative and formative assessments. Charlotte, NC.: Information Age Publisher Inc., 2014.

Chapter Books

  • Chang, H.-H.. Making computerized adaptive testing diagnostic tools for schools, Computers and their impact on state assessments: Recent history and predictions for the future (pp. 195-226). Chapter Book. Ed. R. W. Lissitz and H. Jiao. Charlotte, NC.: Information Age Publisher Inc. , 2012.

Journal Articles

  • Chang, Hua-Hua. "Psychometrics behind computerized adaptive testing. ." Psychometrika (2014): 6 Feb. 2014.
  • Wang, C., H.-H. Chang, and J. Douglas. "The linear transformation model with frailties for the analysis of item response times." British Journal of Mathematical and Statistical Psychology. (2013):
  • Fan, Z., C. Wang, H.-H. Chang, and J. Douglas. "Utilizing response time distributions for item selection in computerized adaptive testing." Journal of Educational and Behavioral Statistics (2013):
Section 2


Facilities Information

Building Remodeling Projects

Click on the title to check out these pictures from the classroom remodeling project in the basement. A second project to replace the elevators will begin in September. Beginning with the freight elevator, each elevator will be out of service for three months. To get quickly from one floor to another, and improve your fitness, we will encourage the use of the stairs. The repainting of the northeast stairwell has been completed, and the painter is starting on the southwest stairwell.