PAUL P. BIEMER, PhD, is a distinguished Fellow at RTIInternational, and Assistant Director for Survey Research at theOdum Institute for Research in Social Science at the University ofNorth Carolina at Chapel Hill.
LARS E. LYBERG, PhD, is Chief Scientist at StatisticsSweden. They both have co-edited, with others, Measurement Errorsin Surveys, Survey Measurement and Process Quality, and TelephoneSurvey Methodology (all published by Wiley).