Yang Liu is currently an Associate Professor in the Measurement, Statistics, and Evaluation program of the Department of Human Development and Quantitative Methodology at University of Maryland, College Park. His research focuses on the development of statistical methods for analyzing item response data, as well as applications of measurement models to psychological, educational, and health-related research. Yang Liu received his M.S. in Statistics in 2014 and Ph.D. in Quantitative Psychology in 2015 from the University of North Carolina at Chapel Hill. He worked as an Assistant Professor in the School of Social Sciences, Humanities, and Arts at University of California, Merced between 2015 and 2017. He then joined University of Maryland, College Park in 2017 and was promoted to an Associate Professor in 2022. Please visit https://terpconnect.umd.edu/~yliu87 for more information about his research and teaching.