Sarah has worked for 20 years on the implementation or evaluation and research sides of community coalitions and other community collaborative prevention programs. She has conducted research evaluating the readiness, functioning, and sustainability of community prevention teams and organizations in PROSPER (PIs: Spoth, Greenberg, Feinberg). In this work, she led the effort to produce easy-to-understand team functioning feedback reports to the PROSPER community teams. She also typically use mixed methodologies to investigate the role of the community context in adolescent development, for which she has received an award for her work. Sarah is now the Principal Investigator of the Implementation Evaluation Research Project for the Annie E. Casey Foundation’s Evidence2Success initiative, which is blending the best of Communities That Care and PROSPER into a community mobilization/systems change effort for urban areas, cities, and communities.