Richard Valliant, PhD , is Research Professor Emeritus at the Institute for Social Research at the University of Michigan and at the Joint Program in Survey Methodology at the University of Maryland. He is a Fellow of the American Statistical Association, an elected member of the International Statistical Institute, and has been an Associate Editor of the  Journal of the American Statistical Association ,  Journal of Official Statistics , and  Survey Methodology .   

Jill A. Dever, PhD , is Senior Research Statistician at RTI International in Washington, DC. She is a Fellow of the American Statistical Association, Associate Editor for  Survey Methodology  and the  Journal of Official Statistics , and an Assistant Research Professor in the Joint Program in Survey Methodology at the University of Maryland. She has served on several panels for the National Academy of Sciences and as a task force member for the American Association of Public Opinion Research's report on nonprobability sampling.

Frauke Kreuter, PhD , is Professor and Director of the Joint Program in Survey Methodology at the University of Maryland, Professor of Statistics and Methodology at the University of Mannheim, and Head of the Statistical Methods Research Department at the Institute for Employment Research (IAB) in Nürnberg, Germany. She is a Fellow of the American Statistical Association and has been Associate Editor of the  Journal of the Royal Statistical Society ,  Journal of Official Statistics ,  Sociological Methods and Research ,  Survey Research Methods ,  Public Opinion Quarterly ,  American Sociological Review , and the  Stata Journal . She is founder of the  International Program for Survey and Data Science  and co-founder of the  Coleridge Initiative.