Julia Chelen, is a Decision Scientist with the National Institute of Standards and Technology (NIST). Within NIST's Public Safety Communication Research (PSCR) Division, Julia leads the User Interface/User Experience portfolio’s research on human judgment and decision making. Her research combines computational methods and behavioral decision theory to understand how individuals and organizations make decisions in a range of contexts. Formerly, Julia was a Research Associate with The Dartmouth Institute in the Geisel School of Medicine at Dartmouth College; the Assistant Director of the Johns Hopkins University Center for Advanced Modeling in the Social, Behavioral and Health Sciences; and a research member of the Center for Social and Economic Dynamics at the Brookings Institution. Her research has been published in cross-disciplinary outlets including Nature and Computational Brain & Behavior. She earned a Ph.D. in engineering and public policy and Bachelor of Science degrees in decision science and public policy and management from Carnegie Mellon University.