YaleEVAL program evaluations combine scientific rigor with the practical realities of implementing feasible evaluations that are responsive to local needs. The scope of our evaluations varies, including individual programs, organizations, and entire service systems. Our evaluations are consistently useful - they inform program planning and management, practice, and policy development. In addition to designing evaluations that yield useful data, we usually provide training and technical assistance to organizations collaborating on an evaluation to enhance the quality of the evaluation. This often results in the creation of an evaluation infrastructure within the program or organization that is sustainable after the formal evaluation ends.