Randomised impact evaluations generate rigorous evidence on the impact of a programme. In this video, Professor Howard White explains the different designs of a randomised evaluation and how it is possible to choose the right design for an intervention.

3ie’s evidence gap maps provide a graphical and colourful display of areas with strong, weak or non-existent evidence on the effects of development programmes. Birte shows us how the gap map’s dynamic and interactive web platform can be a valuable tool for researchers, policymakers and programme managers.

In this video, 3ie's Hugh Waddington explains why meta-analysis is one of the most appropriate methods for decision-makers to use in policymaking.

This presentation provides an overview of one stock-taking effort recently conducted by 3ie to get a sense of the scope, scale, and applications of big data in measurement studies, impact evaluations, and systematic reviews. As we discuss the findings, we will highlight specific details related to nighttime light.

How can impact evaluations test innovative ideas to increase demand generation for voluntary medical male circumcision (VMMC)?  We highlight one 3ie-funded study in South Africa that used financial incentives with compelling results.