At the opening session of 3ie’s recent Measuring Results conference, Jyotsna Puri, Deputy Executive Director and Head of Evaluation at 3ie, said, “It takes a village to do an impact evaluation.” What she meant was that, for an impact evaluation to be successful and policy relevant, research teams need to be diverse and include a mix of disciplines, such as statisticians, anthropologists, economists, surveyors, enumerators and policy experts, as well as use the most appropriate mix of evaluation and research methods.