Research Interests Dr. Jinming Zhang's research focuses on theoretical and applied statistical issues involved in educational and psychological measurement, and his research interest includes multidimensional item response theory, dimensionality assessment techniques, large-scale assessments, generalizability theory, and test security. From 1996 to 2009 he was employed at the Educational Testing Service (ETS) where he was a senior research scientist in the Division of Research and Development. He had worked on various research and operational projects related to large-scale educational assessments, specifically, the National Assessment of Educational Progress (NAEP), at ETS. He successfully directed and co-directed statistical and psychometric analyses of many large-scale assessment projects such as the 1996 and 2005 national science, 2000 state science, 1998, 2002 and 2003 national and state reading, 2006 national civics, and 2008 national arts assessments.