Information summarized in this report is based on data collected and analyzed by American Institutes for Research (AIR) and the David P. Weikart Center for Youth Program Quality (Weikart Center) as part of a statewide evaluation of Washington 21st Century Community Learning Centers (21st CCLC) programs. Results represent findings from Year 2 of a three-year statewide evaluation. The purpose of this executive summary is to (1) set the context for the evaluation design with regard to a primary focus on program quality, (2) outline the evaluation questions and methods, and (3) summarize key findings within each of the identified evaluation questions. To set the context for the evaluation design, a brief discussion on program quality, AIR's framework for understanding afterschool program quality, and the leading indicators of afterschool program quality developed in collaboration with the Washington Office of Superintendent of Public Instruction (OSPI) are provided. Following the discussion on program quality, the evaluation questions and methods are outlined, and a summary of key findings within each of the identified evaluation questions is presented. (author abstract)