Walker, Hill, M.; Severson, Herbert, H.; Todis, Bonnie, J.; Block-Pedego, Alice, E.; Williams, Gregory, J.; Haring, Norris, G.; Barckley, Maureen; Walker, Hill, M., Hill M. Walker, PhD, is a professor of special education and associate dean of the Division of Special Education and Rehabilitation, College of Education, University of Oregon. His research interests include assessment and intervention in school-related behavior disorders, mainstreaming and social integration, and social skills training.; Severson, Herbert, H., Herbert H. Severson, PhD, is a research scientist at the Oregon Research Institute, Eugene, Oregon. His areas of professional interest include behavioral assessment, behavior disorders, prevention of drug use, cessation of tobacco use, perception of risk, and identification of at-risk children.; Todis, Bonnie, J., Bonnie J. Todis, PhD, is a project coordinator at the Oregon Research Institute in Eugene and is a graduate of the Interdisciplinary Doctoral Program in Special Education and Rehabilitation at the University of Oregon. She is a co-author of two social skills instructional programs. ACCEPTS (for elementary students) and ACCESS (for secondary students). Her interests include qualitative research methods, social skills training, and research on self-esteem and self-efficacy among individuals with disabilities.; Block-Pedego, Alice, E., Alice E. Block-Pedego, MA, is currently completing her PhD in special education/behavior disorders at the University of Oregon. Her areas of professional interest include behavior disorders, early identification of at-risk children, behavioral assessment, and intervention with behavior problems and behavioral consultation.; Williams, Gregory, J., Gregory J. Williams, PhD, is assistant professor of education, special education, at Pacific Lutheran University, Tacoma, Washington. His interests include assessment and management of students with behavior disorders, social skill instruction with behavior-disordered adolescents, and SBD program evaluation development.; Haring, Norris, G., Norris G. Haring, EdD, is professor of education, special education, at the University of Washington in Seattle. His interests include assessment and management of students with severe behavior disorders and studying strategies for facilitating generalization and transition with severely handicapped students.; Barckley, Maureen, Maureen Barckley, MS, is a research programmer analyst at Oregon Research Institute in Eugene. She has a masterʼs degree in mathematics from the University of Oregon, and her interests are in statistical analysis.