Chih-Hung Chang, PhD

Professor of Occupational Therapy, Medicine and Orthopaedic Surgery, School of Medicine

Psychometrics+Informatics Laboratory

Chih-Hung Chang, PhD, is focused on the integration of methodology and technology to advance clinical care, research and education.

Background

Dr. Chang is a psychometrician and health services researcher trained in research methodology and quantitative psychology. His research focuses on the integration of methodology and technology to improve patient care quality and safety through efficient yet comprehensive assessment, education and management of patients, their family members, and healthcare professionals. He has extensive experience and expertise in patient-centered outcomes measurement and management in diverse populations and settings utilizing item response theory (IRT) and health information technologies.

Dr. Chang directs the Psychometrics-Informatics Laboratory (The pi Lab), which aims to integrate advanced psychometrics and evolving informatics to advance our understanding of participation and human health. The pi Lab focuses on the knowledge translation of measurement theory and data science methods, as well as the design, development, deployment and dissemination of universally designed data capture, analysis, report and visualization systems.

Dr. Chang earned his bachelor’s degree in psychology from National Chengchi University in Taipei, Taiwan in 1987. He earned his PhD from the Committee on Research Methodology and Quantitative Psychology of the Department of Psychology in 1995. Dr. Chang has authored or co-authored more than 100 journal articles and book chapters. He currently serves as associate editor for Applied Psychological Measurement (APM) and Journal of Patient-Reported Outcomes (JPRO).

Research Interests

  • Item response theory
  • Rasch measurement
  • Computerized adaptive testing
  • Psychometrics
  • Informatics
  • Smart testing smart learning
  • Health-related quality of life
  • Patient-reported outcomes
  • Clinical outcomes
  • Shared decision making
  • Quality improvement

Lab Members

  • Irene Chun, Clinical Research Coordinator
  • Rosalind Chou, Graduate Biostatistician, Washington University in St. Louis, School of Medicine
  • Annamayil Manohar, Graduate Assistant, Washington University in St. Louis, School of Medicine
  • Shelby Martin, Graduate Assistant, Washington University in St. Louis, School of Medicine
  • Alexis Park, BioInformatics Data Science Intern, Washington University in St. Louis, McKelvey School of Engineering