Uruguay has increased it preschool enrollment, reaching almost universal coverage among four- and five-year-olds. However, more than a third of children enrolled in preschool programs have insufficient attendance, with absenteeism higher in schools in lower socioeconomic areas and among younger...

This paper presents the results of a nationwide very low-cost behavioral intervention aimed at increasing preschool attendance in Uruguay. Specifically, behaviorally-informed messages were delivered through the government's official mobile app. We document a large reduction in absenteeism, as...

In this article we experimentally evaluate Colombia's Think Equal program, which teaches socioemotional skills to children ages 3 to 6. Given the context of COVID-19, the original design was adapted as a hybrid model, alternating in-person and remote instruction and engaging families in the...

This paper describes a policy experiment implemented in Costa Rica to increase learning during the COVID-19 pandemic. The experiment provided parents of preschool students with text messages to support their children's learning at home. After 15 weeks of intervention, the cognitive skills of...

We evaluate the effects of a 10-week intervention that randomly provided access to remote coaching to parents of preschool children over the summer break in Peru. In response to learning losses during school closures induced by COVID-19, education coaches offered guidance and encouragement to...

Play during early childhood is key to stimulating children's physical, social, emotional, and cognitive development. However, research on play-based learning is largely limited to high-income countries, and little is known about the use of hybrid interventions (which combine in-person and remote...

Research from the United States shows that gaps in early cognitive and non-cognitive ability appear early in the life cycle. Little is known about this important question for developing countries. This paper provides new evidence of sharp differences in cognitive development by socioeconomic...

This paper documents disparities in cognitive development-as measured by a receptive vocabulary test-between children from households with high and low socioeconomic status (SES) in two different phases of childhood (before and after early school years) in four developing countries: Peru,...