Cody S. Ding completed his Ph.D. in University of Minnesota, Minneapolis. He was trained as a psychologist with emphasis on developmental psychology, methodology, and measurement. Over years, he has been working as a professor at universities, teaching educational and psychological assessment, research designs, quantitative analysis, and other methodological related courses. In addition, he has been working with many school districts and the state educational agencies on various evaluation projects to improve student learning and school practices.With expertise in quantitative research design and analysis, in particular experimental design and survey research, Dr. Ding focuses on multidimensional scaling, data visualization, and longitudinal modeling. Psychometric expertise includes item response theory and multidimensional scaling applied to measurement and evaluation research. Dr. Ding has been actively involving in research on multidimensional scaling aslatent growth model and cognitive measurement model in education and psychological assessment. His research interests include exploratory latent variable analysis via multidimensional scaling (MDS), applications of Item Response Theory (IRT), Structural Equation Modeling (SEM), and Bayesian network in studying psychosocial adaptation of adolescents and young adults.Dr. Cody Ding has been conducting cutting-edge methodological research and providing high-level consulting services to quantitative researchers in the social and behavioral sciences, including several evaluation grants that investigate the program effectiveness on student learning.