Jinming Zhang's research interests focus on theoretical and applied statistical issues involved with educational and psychological measurement, specifically, multidimensional item response theory, dimensionality assessment procedures, large-scale assessment, 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.