Angeline Stoll Lillard is an American developmental psychologist and an internationally recognized expert on Montessori education and child development. She is currently professor of psychology and director of the Early Development Laboratory at the University of Virginia. Her research and writing explores these topics in a number of respects including learning through pretend play, the efficacy and impact of Montessori vs non-Montessori schools, and equitable access to Montessori education. Lillard is an elected fellow of the American Association for the Advancement of Science, the American Psychological Association, and the Association for Psychological Science.