The promise of randomized controlled trials is that evidence gathered through the evaluation of a specific program helps us--possibly after several rounds of fine-tuning and multiple replications in different contexts--to inform policy. However, critics have pointed out that a potential...

Motivated by the quantitative and qualitative analysis of these early attempts, we adapted the approach and designed large-scale experiments in the states of Haryana and Uttar Pradesh to test two new scale-up models. In Haryana, teachers received support from government resource persons trained...