作者: Kennedy Courtney Kennedy

Paul J. Lavrakas, Ph D, is Senior Fellow at the NORC at the University of Chicago, Adjunct Professor at University of Illinois-Chicago, Senior Methodologist at the Social Research Centre of Australian National University and at the Office for Survey Research at Michigan State University. Michael W. Traugott, Ph D, is Research Professor in the Institute for Social Research at the University of Michigan. Courtney Kennedy, Ph D, is Director of Survey Research at Pew Research Center in Washington, DC. Allyson L. Holbrook, Ph D, is Professor of Public Administration and Psychology at the University of Illinois-Chicago. Edith D. de Leeuw, Ph D, is Professor of Survey Methodology in the Department of Methodology and Statistics at Utrecht University. Brady T. West, Ph D, is Research Associate Professor in the Survey Research Center at the University of Michigan-Ann Arbor.