Edith Aurora Graf is a senior research scientist in the K12 Learning, Teaching, and Assessment center at ETS. She received a Ph.D. in psychology and a B.A. in mathematics from the University of Washington in 2000. She received a B.A. in psychology from Binghamton University in 1992. Her work focuses on the application of cognitive psychology to mathematics learning and assessment design. She has been involved in developing cognitive models for mathematics assessments and has interest in the development and validation of learning progressions and the application of item modeling and automatic item generation for exploring features that influence the psychometric functioning of mathematics assessment tasks. Graf is principal investigator of the grant, Development and Empirical Recovery for a Learning Progression-Based Assessment of the Function Concept, awarded from the National Science Foundation (Grant No. 1621117). This work represents a collaborative effort on the part of ETS, The Algebra Project, Southern Illinois University–Edwardsville, and the Young People’s Project and is featured in two 3-minute videos in the STEM for All Video Showcase.