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Board of Directors

Roper Center Board Members

Nancy Belden

Nancy Belden is the founding partner of Belden Russonello Strategists. She has conducted hundreds of research projects over three decades, including national public opinion polls, focus groups, and studies of elite audiences. She holds an MA from Georgetown University and a BA from Mary Washington College of the University of Virginia. She is a past President of the American Association for Public Opinion Research.

Duane Berlin

Duane L. Berlin, Education: Brandeis University (A.B., 1980); University of Miami (J.D., cum laude, 1983). Practice Areas: Corporate Finance and Securities; Privacy and Data Security; Technology and Commercial Law. Duane lives in Fairfield County, Connecticut with his wife and their two daughters.

William Block

William Block is a founder of Freedom on the Move, a data collection project incubated within Cornell's CISER that has grown into the world's largest collection of runaway slave ads from North American newspapers.

Michael Delli Carpini

Michael X. Delli Carpini, Professor of Communication and Walter H. Annenberg Dean, received his B.A. and M.A. from the University of Pennsylvania (1975) and his Ph.D. from the University of Minnesota (1980). His research explores the role of the citizen in American politics, with particular emphasis on the impact of the mass media on public opinion, political knowledge and political participation.

Sarah Cho

Cho is one of the founding members of the Research team at SurveyMonkey. In her role as Director of Research, she is responsible for integrating survey best practices into all of SurveyMonkey’s products and services. Sarah manages the development of trainings, product features, and interactions with top customers, to showcase the value of the surveys in the workplace. In a previous role, she also worked with partners at a variety of media organizations, providing critical polling to encourage journalists to do more data-driven reporting. She graduated with an AB in Community Health from Brown University and an MPH in Epidemiology from Columbia University.

Peter Enns

Peter Enns is Co-founder and Chief Data Scientist at Verasight. He is also the Robert S. Harrison Director of the Cornell Center for Social Sciences and Professor of Government and Professor of Public Policy at Cornell University. He was Executive Director of the Roper Center from 2015 to 2022. He holds a B.A. from Colorado College and a Ph.D. from the University of North Carolina at Chapel Hill.

Anna Greenberg

Anna Greenberg, Ph.D. has over 20 years of experience polling in the political, non-profit and academic sectors. She joined GQR in 2001 after teaching public opinion and survey research methodology at Harvard University’s John F. Kennedy School of Government. She was the lead pollster in many successful political campaigns. In 2014, Greenberg won the “Pollster of the Year” award from the AAPC for her work with Mayor Bill de Blasio’s campaign for mayor of New York City. Greenberg served on the board of the American National Election Study (ANES) from 2014 to 2017 and is a research fellow at American University’s Center for Congressional and Presidential Studies. She holds a BA in Government from Cornell University and Ph.D. in Political Science from the University of Chicago.

Liz Hamel

Liz Hamel is Vice President and Director of Public Opinion and Survey Research at the Kaiser Family Foundation (KFF), where she directs KFF’s polling work including the monthly Health Tracking Poll and ongoing survey partnerships with news media organizations such as The Washington Post. Her research focuses on understanding the U.S. public’s views and knowledge on health care policy issues, and the role of opinion in health policy debates. Hamel is an active member of both AAPOR and its Pacific chapter (PAPOR), and has served on the Executive Councils of both organizations. She holds a BA from Harvard University.

Juliana Horowitz

Juliana Menasce Horowitz is associate director of research at Pew Research Center, where she helps oversee research on social and demographic trends. She is involved in all stages of the research process, including designing and managing major survey projects, developing questionnaires, analyzing polling data, writing and editing reports and presenting survey results. She has conducted research and written on various social issues, including racial attitudes, cross-national views of gender equality, and the changing American family, and also has worked actively on the Center’s U.S. politics and global attitudes research efforts. Before joining Pew Research Center in 2006, Horowitz worked at the Center for American Politics and Citizenship at the University of Maryland. She received a doctorate in political science from the University of Maryland at College Park. Horowitz regularly presents findings from the Center’s studies to the policy and academic communities and has been interviewed by numerous domestic and international media outlets.

Vincent L. Hutchings

Vincent Hutchings is the Hanes Walton Jr. Collegiate Professor of Political Science at the University of Michigan and a Research Professor at the Institute for Social Research. He received his Ph.D. in 1997 from the University of California, Los Angeles. Professor Hutchings teaches courses in African American politics, public opinion & voting behavior, and Congress. His research interests focus on the circumstances under which citizens are attentive to political matters and engage in issue voting. He has published a book on this topic entitled Public Opinion and Democratic Accountability (2003), from Princeton University Press. His research also examines the ways in which political campaigns and the media frame information about racial issues in order to activate and make politically relevant the voters’ sympathies and/or antipathies for particular racial groups. His work has appeared in the American Sociological Review, the American Political Science Review, the Journal of Politics, Political Behavior, Public Opinion Quarterly, Journal of Communication and Legislative Studies Quarterly. Professor Hutchings has received multiple grants from the National Science Foundation, most recently (2014) for a project he and colleague Ted Brader administered entitled “Collaborative Research: American National Election Studies (ANES) 2014-2017.” In 2012, Professor Hutchings was elected as a Fellow to the American Academy of Arts and Sciences (AAAS).

Timothy Johnson

Timothy Johnson, PhD from the University of Kentucky, is Emeritus Professor at the University of Illinois at Chicago, where he directed the Survey Research Laboratory for 23 years. He is currently a Research Fellow with NORC at the University of Chicago. Johnson’s current research focuses on measurement errors in cross-cultural research, nonresponse errors in health surveys, and public perceptions of the legitimacy of social research. He has previously served the profession in multiple roles, including as President of MAPOR (2010-11) and of AAPOR (2017-18).

Lee Miringoff

Lee M. Miringoff is the director of the Marist Institute for Public Opinion at Marist College, and is a member of the Political Science faculty at the college. Lee received his Ph.D. in political science from the Massachusetts Institute of Technology. Lee is a frequent commentator on politics and elections. He has appeared regularly on television and radio as an expert on public opinion, politics, and polling.

Limor Peer

Limor Peer is Associate Director for Research at the Institution for Social and Policy Studies (ISPS) at Yale University. She also serves as a Research and Data Specialist at the Office of the Provost, spearheading campus-wide efforts relating to research data sharing and preservation. She is the former Research Director at Northwestern University’s Media Management Center and Readership Institute. Her research interests include the media’s role in democracy and in the public opinion process. Peer received her Ph.D. and M.A. in Communication Studies from Northwestern University and a B.A. in Political Science from Tel Aviv University.

Susan Pinkus

Susan Pinkus is former director of the Los Angeles Times Poll and has been a public opinion pollster for more than 25 years. She started her career with the poll as a marketing research analyst in 1978, and has held numerous positions over the last 30 years. She has started her own consulting firm, S. H. Pinkus Research Associates.

Doug Rivers

Douglas Rivers is the Chief Innovations Officer at YouGov. Doug Rivers is one of the world’s leading experts on survey research and a successful Silicon Valley entrepreneur. He has taught at Harvard University, Caltech, UCLA, and, most recently, Stanford University, where he is Professor of Political Science and Senior Fellow at the Hoover Institution. He holds a B.A. from Columbia University and a Ph.D. from Harvard University.

Bryn Rosenfeld

Bryn Rosenfeld is Assistant Professor of Government at Cornell University. Her research interests include political behavior, development and democratization, protest, post-communist politics, and survey methodology. She is the author of The Autocratic Middle Class (Princeton University Press, 2020) as well as articles in the American Political Science Review, the American Journal of Political Science, Comparative Political Studies, and Sociological Methods & Research. Previously, she was Assistant Professor of Political Science at the University of Southern California, a postdoctoral fellow at Nuffield College, University of Oxford, and worked for the U.S. State Department’s Office of Global Opinion Research. She is the recipient of a Best Article Award honorable mention and the Juan Linz Prize, both by the American Political Science Association’s Democracy & Autocracy Section, as well as the U.S. State Department’s Meritorious and Superior Honor Awards for her analysis of Russian public opinion. She holds a PhD from Princeton University.

Tom W. Smith

Tom W. Smith Ph.D., American History, University of Chicago, M.A., History, Pennsylvania State University, B.A., History, Political Science, Pennsylvania State University. Smith directs NORC’s Center for the Study of Politics and Society.  From 1980 to 2019, he served as Director of the General Social Survey (GSS), one of NORC’s most visible projects and one of the nation’s most heavily utilized datasets. He is also co-founder of the International Social Survey Program (ISSP), former Secretary General of the ISSP, and currently serving on the ISSP Drafting and Methodology Committees.

Ex-Officio Board Members

Jonathon Schuldt, Executive Director of the Roper Center
Brett Powell, Associate Director of the Roper Center
Kathleen Weldon, Director of Data Operations and Communications of the Roper Center