About the Author
Frank M. Andrews, Ph.D.
At the time of his death in 1992, Frank was a Research Scientist at
the Institute for Social Research, Professor of Psychology, and
Professor of Population Planning and International Health, at the
University of Michigan. He received the University's Distinguished
Research Scientist Award in 1990.
Senior Social Science Research Associate at the Institute for
Social Research and Lecturer in Psychology at the University of
Michigan. She teaches and consults on topics of data analysis.
Patrick M. O'Malley, Ph.D.
Senior Research Scientist at the University of Michigan. He has
published extensively on the epidemiology and etiology of use and
abuse of psychoactive drugs, including the policy implications of
Willard L. Rodgers, Ph.D.
Senior Research Scientist at the Institute for Social Research and
Adjunct Professor in the Sociology Department at the University of
Michigan and in the Joint Program in Survey Methodology at the
University of Maryland. He teaches courses on the analysis of
survey data and the analysis of complex survey data.
Kathleen B. Welch
Statistical Software Consultant at the University of Michigan.
She has over 10 years experience using SAS software and has
developed and continues to teach several SAS software courses
along with providing SAS technical support for the University.
Terrence N. Davidson, Ph.D.
Served on the University of Michigan faculty for twenty years.
In the mid-1980's he shifted his career into the K-12 public
school sector conducting a variety of research and project