DAVID BINDER is a consultant on survey design and was previously director general of the methodology branch of Statistics Canada. He is a fellow of the American Statistical Association and an elected member of the International Statistical Institute. He has written extensively on the theory and methods for the analysis of complex survey data. At the National Research Council, he served on the Panel on the Research on Future Census Methods. He is a past president of the Statistical Society of Canada. He has a B.Sc. from the University of Toronto and a Ph.D. from Imperial College, London.

RAY D. BOLLMAN is chief of research and analysis of the agriculture division of Statistics Canada. He also serves as adjunct research professor at the University of Manitoba. He has written extensively on rural development issues and has analyzed data sets on household expenditure patterns for rural families. He has B.Sc. and M.Sc. degrees from the University of Manitoba and a Ph.D. in economics from the University of Toronto.

CYNTHIA Z.F. CLARK is an executive director at the U.K. Office for National Statistics leading the Methodology Directorate. Previously she served as associate director for methodology and standards at the U.S. Census Bureau where she led the large scale evaluation of the 2000 census, established an administrative records research program, initiated a framework for quality standards, and developed a usability laboratory. She has 13 years experience with agriculture surveys and censuses as a division director at the National Agricultural Statistics Service and research manager in the Agriculture Division of the Census Bureau. Her professional work focuses on survey and census methodology, operations, and research; official statistics; survey technologies; privacy and confidentiality; and statistical training in the workplace. She is a fellow of the American Statistical Association and an elected member of the International Statistical Institute. She has M.S. and Ph.D. degrees in statistics from Iowa State University.

FREDERICK CONRAD is research associate professor of the Institute for Social Research at the University of Michigan. His research generally involves identifying and reducing survey measurement error by applying ideas and methods from cognitive science. His current research is focused on adaptive user interfaces in web surveys, understanding and misunderstanding survey questions, estimation processes, evaluation of questionnaire pretesting methods, and interviewer-respondent interaction. He has a Ph.D. in psychology from the University of Chicago.

ANI L. KATCHOVA is assistant professor in the Department of Agricultural and Consumer Economics of the University of Illinois at Urbana-

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