लेखक: Diane Willimack

GER SNIJKERS, Ph D, is Senior Researcher and Advisor in Business Survey Data Collection Methodology at Statistics Netherlands, after having held various research and project management positions. From 2006-2011, he held the position of Professor of Business Survey Methodology at Utrecht University. GUSTAV HARALDSEN, Mag. Art., is Senior Methodological Advisor in the Department of Data Collection and Methods at Statistics Norway. He previously headed the Division for Interviewing Surveys and the Division of Data Collection Methods. JACQUI JONES, BA (Hons), MSc, is Deputy Director of the Business Indicators and Balance of Payments Division in the UK Office of National Statistics (ONS). Prior to this, she worked in the Methodology Directorate at ONS. DIANE K. WILLIMACK, MS, MA, is Chief of the Response Improvement Research Staff at the Economic Programs Directorate of the U.S. Census Bureau. She previously served as a mathematical statistician and survey methodologist at the National Agricultural Statistics Service (U.S. Department of Agriculture). Additional contributors include Paul Smith (ONS), Deirdre Giesen (Statistics Netherlands), Li Chun Zhang (Statistics Norway), and Mike Hidiroglou (Statistics Canada).