Barbara Schneider, Ph.D. is a John A. Hannah Distinguished University Professor at Michigan State University and principal investigator of the Data Research and Development Center at the National Opinion Research Center at the University of Chicago. Sarah-Kathryn Mc Donald is executive director of the Data Research and Development Center and a research scientist at the National Opinion Research Center at the University of Chicago.
2 كتب إلكترونية بواسطة Sarah-Kathryn McDonald
