Ruth P. Saunders, PhD, is an professor emerita in the Department of Health Promotion, Education, and Behavior in the Arnold School of Public Health at the University of South Carolina. Dr. Saunders has 25 years of research and practice experience in conducting program, policy, and practice change in organizational settings, including preschools, schools, after-school settings, children s group homes, and faith-based settings. Her roles in these projects, which include eight large-scale interventions, have encompassed using multi-level conceptual models to develop a comprehensive model of organ...