Yu Sun is a senior psychometric analyst in the Research & Development division at ETS. She joined ETS in March 2011 and cross‐trained for approximately two years on various statistical analysis testing programs from K-12, teacher quality, higher education, and TOEIC® groups. In 2013, she dedicated herself full-time to K-12 programs. She had been working on the Smarter Balanced Common Core program and Partnership for Assessment of Readiness for College and Careers (PARCC) program. Currently, Sun is working on the State of Texas Assessments of Academic Readiness (STAAR) summative assessments as a coordinator in the psychometric team. She received her master’s in measurement, statistics, and evaluation from the University of Maryland in 2006.