Previous randomized studies have shown that addressing children's current learning gaps, rather than following an over-ambitious uniform curriculum, can lead to significant learning gains. In this study, we evaluate a series of efforts to scale up the NGO Pratham's approach to teaching children...

The culture of evaluation of social programs has been institutionalized in Mexico. However, in spite of the efforts of the National Council for Social Policy Evaluation, process evaluation, contrary to impact evaluation, has not received the attention it deserves. This paper presents an example...

This paper studies the event-history approach to microeconometric program evaluation. We present a mixed semi-Markov event-history model, discuss its application to program evaluation, and analyze its empirical content. The results of this paper provide fundamental insights in what can be...

We were asked to discuss specific methodological approaches to evaluating three hypothetical interventions. This article uses this forum to discuss three misperceptions about randomized trials. First, nobody argues that randomized trials are appropriate in all settings, and for all questions....

In 2006 the Center for Global Development's report 'When Will We Ever Learn? Improving lives through impact evaluation' bemoaned the lack of rigorous impact evaluations. The authors of the present paper researched international organizations and countries including Mexico, Colombia, South...