1. EDWARD G. FEIL, PhD, is a research associate at Oregon Research Institute in Eugene. His research interests include early childhood development and early assessment and intervention for young children with emotional and behavioral problems.
2. HILL M. WALKER, PhD, is the associate dean and director of the Center on Human Development in the College of Education at the University of Oregon in Eugene. His research interests include behavioral assessment, social skills intervention, and antisocial behavior.
3. HERBERT H. SEVERSON, PhD, is a research scientist at Oregon Research Institute and associate professor of counseling psychology at the University of Oregon in Eugene. His research interests are early identification of behavior disorders, smoking and substance use prevention, smokeless tobacco cessation, and risk perception.