La evaluación de impacto: qué es, cómo se mide y qué está aportando en la cooperación al desarrollo[Impact Assessment and Evaluation: What it is it, how can it be measured and what it is adding to the development of international co-operation]

This article defines impact assessment and evaluation while comparing three different approaches. First, randomized evaluations or random control trials, which aim to maximize quantitative accuracy and solve selection bias. Second, non-experimental methods, where randomization is not possible. Third, participatory techniques. The article also discusses pros and cons of each methodology. Applications and uses in the education sector help to illustrate differences.