Quasi-experimental evaluation methods promised to provide a way of testing and improving solutions to social problems. These methods have been found wanting. Alternative approaches, including “pragmatic evaluation,” “naturalistic evaluation,” and “pluralist evaluation” are also shown to be unsatisfactory. The initial promise of the evaluation movement has been disappointed. Realistic evaluation is advocated as an alternative to existing forms of evaluation. It is rooted in some European traditions in epistemology, ontology, and social theory. It offers a framework within which rigorous outcome (...) evaluations can be undertaken with results that can inform policy and practice. (shrink)