Andrew, Alison; Attanasio, Orazio P.; Bernal, Raquel; … - 2019
Global access to preschool has increased dramatically yet preschool quality is often poor. We use a randomized … controlled trial to evaluate two approaches to improving the quality of Colombian preschools. We find that the first, which was …, improved the quality of teaching and raised children’s cognition, language and school readiness. …