erage by numerous local and national media organizations. His many publications and six open-source software packages span informatics, statistics, computer science, political science, and other social science disciplines. He holds a Ph.D. from the California Institute of Technology.

Elana Broch is assistant population research librarian in the Stokes Library for Public and International Affairs and the Ansley J. Coale Population Research Collection at Princeton University. She has done work in visualization of statistical information and presentation of statistical inference. She provides current awareness service to faculty, students, postdoctorate students, and visiting researchers associated with Princeton’s Office of Population Research. Previously she was measurement statistician at the Educational Testing Service in Princeton, New Jersey. She has a Ph.D. in psychometric methods from the University of Minnesota.

John M. Carroll is Edward Frymoyer professor of information sciences and technology at Pennsylvania State University. His research interests include methods and theory in human-computer interaction, particularly as applied to networking tools for collaborative learning and problem solving, and design of interactive information systems. He is the author of Making Use (2000), HCI in the New Millennium (2001), and Learning in Communities (Springer, 2009). Carroll serves on several editorial boards for journals, handbooks, and series and as editor-in-chief of the ACM Transactions on Computer-Human Interactions. He received the Rigo Award and the CHI Lifetime Achievement Award from the Association for Computing Machinery (ACM), the Silver Core Award from the International Federation for Information Processing, and the Goldsmith Award from IEEE. He is a fellow of ACM, IEEE, and the Human Factors and Ergonomics Society. He has a Ph.D. in psychology from Columbia University.

Patrick J. Clemins is director of the R&D Budget and Policy Program of the American Association for the Advancement of Science (AAAS). In this role, he serves as an international expert on the U.S. federal research and development investment, disseminating data and analyses through presentations, publications, and web content to a variety of audiences that include national and international policy makers, scientific associations, journalists, and the research community. Prior to joining AAAS, he was a AAAS Science and Technology Policy Fellow at the National Science Foundation in the Directorate for Biological Sciences. In the Division of Biological Infrastructure, he focused on fostering collaboration between the biological sciences and the computing and engineering research communities and the use of computing technologies for outreach and community building. Previously he was a systems engineer for Techteriors, LLC, a home automation firm,

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