Dr. Jeng-Shin Wu is an assistant researcher in the Research Center for Curriculum and Instruction at the National Academy for Educational Research (NAER). Wu joined the NAER in 2018. His research focuses on the mathematical competency-based assessment and large-scale educational assessment. 　　Wu earned his Ph.D. in science from Tamkang University, R.O.C in 2008, specializing in statistics. He has served as a postdoctoral researcher in PISA Taiwan National Center at the National University of Tainan, and in The Aim for the Top University Project at National Taiwan Normal University. He also has served as a researcher and the chief of the item bank R&D section in the Research Center for Psychological and Educational Testing at National Taiwan Normal University.