item response theory, psychometrics, test theory, statistical inference, Latent variable modeling

Yang Liu is currently an Associate Professor in the Quantitative Methodology: Measurement and Statistics (QMMS) program of the Department of Human Development and Quantitative Methodology (HDQM) at University of Maryland, College Park. His research focuses on the development of statistical methods for analyzing item response data, as well as the adaptation of measurement modeling to psychological, educational, and health-related research. For more information, please visit Yang Liu's personal website.