This evaluation, which focuses on the capacity-building mission of the Comprehensive Centers, was designed to add to the findings of the previous national evaluation of the Comprehensive Centers Program. That evaluation, completed in 2011, used survey data, structured interviews, and rating scales to analyze the extent to which State Education Agency (SEA) capacity changed and to assess the quality, relevance, and usefulness of Center services across all state priority areas. The current evaluation analyzed the processes by which Centers may produce SEA capacity change. In addition, by focusing on two priority areas, the current evaluation aimed to provide more nuanced information on the implementation processes and how they may lead to changes in capacity-related outcomes. [For the Final report, see ED599103. For the study highlights, see ED599102.