This resource is a video of an interview with Dr Howard White, Executive Director of the International Initiative for Impact Evaluation (3ie). In this interview White explains the significance of Impact Evaluation to effective development programs and outlines the reasons he strongly supports investment in this area.
Source: http://ifad-un.blogspot.com.ar/2012/09/rigorous-impact-evaluations-are-much_20.html
Sources
International Fund for Agricultural Development (IFAD) 2012, Rigorous impact evaluations are much more than just evaluations, IFAD Social Reporting Blog, Posted by Roxanna Samii Thursday, September 20, 2012, at http://ifad-un.blogspot.com.ar/2012/09/rigorous-impact-evaluations-are-much_20.html