CCT works as an evaluation partner to a wide range of organizations, designing evaluations that respond to the particular needs of a given program. We frequently conduct intensive formative evaluations to inform the further development and design of programs and ensure they fully meet the needs of their target audience. When we conduct summative evaluations we work closely with clients to determine what research designs and approaches are appropriate to the particular purpose of the evaluation. In recent years we have conducted several large-scale randomized control trials to test the efficacy of innovative curricula, have worked with corporate clients to conduct detailed case studies of schools engaged in comprehensive change processes, and worked across multiple countries to track the impact of a professional development program on teacher. All of CCT's evaluations are designed to balance rigorous methods with maximum accessibility and utility for the client.