Understanding of Science and Technology and is on the advisory board to the Sciencenter, an interactive science museum in Ithaca. His work has been supported by the National Science Foundation, the U.S. Department of Agriculture, the U.S. Department of Energy, the National Aeronautics and Space Administration, and the Chemical Heritage Foundation. He has a B.A. from the University of Chicago and an M.A. and a Ph.D. from the University of Pennsylvania, in the history and sociology of science and in science and technology policy.

Sue Allen is director of visitor research and evaluation at the Exploratorium in San Francisco, where she oversees all aspects of visitor studies, education research, and evaluation on all projects involving the museum’s public space. She was the in-house evaluation coordinator for the California Framework Project, which explored the roles that a science museum can play in assisting science education reform in the schools. She and her colleagues study visitors’ learning in the museum’s public space and work collaboratively with practitioners in the design of their research and evaluation agendas. Her current research interests include methods for assessing learning, exhibit design, personal meaning-making, and scientific inquiry. She has lectured in the Department of Museum Studies at the John F. Kennedy University. She teaches a graduate-level, action-oriented course on thinking and learning in science in the School of Education at the University of California, Berkeley. She has contributed numerous articles and book chapters to the informal science field. She is a member of many professional associations, including the Visitor Studies Association, the Museum Education Roundtable, and Cultural Connections. She has a Ph.D. in science education from the University of California, Berkeley.

B. Bradford Brown is professor of human development and former chair of the Department of Educational Psychology at the University of Wisconsin–Madison. His research has focused on adolescent peer relations, especially teenage peer groups and peer pressure and their influence on school achievement, social interaction patterns, and social adjustment. He is the former editor of the Journal of Research on Adolescence and a past member of the Executive Council of the Society for Research on Adolescence (SRA). Currently, he serves as chair of the SRA Study Group on Parental Involvement in Adolescent Peer Relations. He is the coeditor or coauthor of five books, including The Development of Romantic Relationships in Adolescence, The World’s Youth: Adolescence in 8 Regions of the Globe, and Linking Parents and Family to Adolescent Peer Relations: Ethnic and Cultural Considerations. He has served as a consultant for numerous groups, including the Carnegie Council on Adolescent Development, the National Campaign to Prevent Teen Pregnancy, and the Blue Ribbon Schools Program of the U.S. Department