This guide identifies questions that cities are currently addressing in their evaluations, and provides definitions of research terms and activities used in program evaluation, a comprehensive list of common outcomes and processes that have been measured in past after-school evaluations, a summary of recent after-school outcome evaluation findings, and a discussion of these findings. Finally, this paper presents the next steps in Oakland’s evaluation efforts, based on this information, for the Oakland Comprehensive After-School Program Initiative and other city funded after-school programs.