Steven Heeringa is a Senior Research Scientist at the University of Michigan Institute for Social Research (ISR) where he is Director of the Statistical Design Group. He is a member of the Faculty ...lihat lebih banyakSteven Heeringa is a Senior Research Scientist at the University of Michigan Institute for Social Research (ISR) where he is Director of the Statistical Design Group. He is a member of the Faculty of the University of Michigan Program in Survey Methods and the Joint Program in Survey Methodology at the University of Maryland. Heeringa is a Fellow of the American Statistical Association and elected member of the International Statistical Institute. He is the author of many publications on statistical design and sampling methods for research in the fields of public health and the social sciences. Heeringa has over 35 years of statistical sampling experience in the development of the ISR's National Sample design, as well as research designs for the ISR's major longitudinal and cross-sectional survey programs.lihat lebih sedikit