Dr. Chen's research interests include survey sampling, missing data problems, empirical likelihood, data integration, semi-parametric modeling, and small area estimation. Dr. Chen is currently also a member of the Oklahoma Shared Clinical and Translational Resources (OSCTR) project and he is faculty member of Stephenson cancer center BioStat core. Dr. Chen also holds survey methodologist position for OUHSC sooner survey center and consultant position for Tribal Epidemiology Center at Southern Plains Tribal Health Board.