Graham Kalton is Chairman of the Board of Directors and a Senior Vice President at Westat, a survey organization located in Rockville, Maryland, USA. Prior to joining Westat in 1992, Dr. Kalton was a research scientist at the Survey Research Center of the University of Michigan, where he also held the titles of Professor of Biostatistics and Professor of Statistics. Earlier in his career he was the Leverhulme Professor of Social Statistics at the University of Southampton and Reader in Social Statistics at the London School of Economics. He has served as President of the International Association of Survey Statisticians, as a member of the National Academy of Sciences’ Committee on National Statistics, and of five CNSTAT panels, and as a member and chair of Statistics Canada’s Advisory Committee on Statistical Methods. Dr. Kalton is a Fellow of the American Association for the Advancement of Science, a Fellow of the American Statistical Association, a National Associate of the National Academies, an elected member of the International Statistical Institute, and a recipient of the Jerzy Neyman Medal from the Polish Statistical Society.