institutions. His work covers a broad range of substantive areas, including education, employment, health care, health insurance, outdoor recreation, disability, aging, alcohol and drug use, crime, homelessness, housing, program participation, long-term care, and income, as well as methodological research. Previously he worked at Market Strategies, International and as division director of the Demographic Surveys Division at the U.S. Census Bureau. While at the Census Bureau, he worked on the National Survey of College Graduates and the Survey of Recent College Graduates. He is a member of the ASA where he was chair of the Government Statistics Section, and the American Association for Public Opinion Research. He holds a master’s degree in governmental administration from the George Washington University.


Brenda G. Cox is survey research leader in the Arlington, Virginia, office of Battelle Memorial Institute. She has 30 years of experience in sample design and implementation for national, state, and local surveys on diverse topics, including education and career outcomes, health care utilization and expenditures, customer satisfaction and access to care, alcohol and substance abuse, crime victimization, nutrition and the homeless, emergency food assistance, child support enforcement, agricultural production, small business finances, and the environment. Since 1993, she has served as a senior statistical adviser for the Scientists and Engineers Statistical Data System (SESTAT) fellow of the ASA. Dr. Cox has served as chair of the Survey Research Methods Section, chair of the Council on Chapters, and as a member of the board of directors. She has also served as president of the Washington Statistical Society and of the North Carolina and Princeton-Trenton Chapters of the ASA. She holds a Ph.D. degree in statistics from Virginia Polytechnic Institute and State University.


Randall J. Olsen is a professor of economics at the Ohio State University, where he is director of the Center for Human Resource Research and director of the Initiative in Population Economics. His fields are econometrics, labor economics, and economic demography. He is interested the problem of design effects in surveys, job mobility and a variety of issues relating to survey data collection. He has been the project director of the National Longitudinal Surveys of Labor Market Experience (NLS) since 1987, overseeing instrument design, field work, and data preparation for this group of surveys. He has also overseen the transition of the NLS from legacy data collection systems to an integrated system for handling all phases of survey work, from instrument authoring through data dissemination. He has served as an associate editor for Evaluation Review, Journal of the American Statistical Association and Demography. He holds a Ph.D. from the University of Chicago.



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