Stacey S. Horn is an associate professor of Educational Psychology and Human Development, and director for the MEd program in Youth Development. Horn is interested in adolescent development; social and moral reasoning about peer groups and intergroup relations; and prejudice and discrimination related to sexual orientation and gender identity. Her applied work investigates the relationships among institutional structures and adolescents' social and moral reasoning — specifically related to peer interactions. Her research has been published in numerous peer-reviewed journals, and has been supported by grants from the Ford Foundation, the Substance Abuse and Mental Health Services Administration, the Wayne F. Placek Fund of the American Psychological Association and other foundations.
Horn serves on three editorial boards, the Equity and Justice committee of the Society for Research in Child Development, and the governing board for the Illinois Safe Schools Alliance. She is a former high school English teacher, and has worked with young people for more than 20 years.