BRIEFJune 29, 2026

Optimal Design of Digital Early Childhood Development Interventions

CountryBrazil
Evaluation designRandomized control trial to examine the effectiveness of embedding a digital parenting intervention within Brazil’s national home visiting program for socioeconomically vulnerablefamilies with children under age three. 
EdTech componentsDigital platform to provide parenting resources plus Whatsapp messaging support. 
Target populationCaregivers of children under age 3
Main outcomesParent well-being, self-efficacy, home learning environment, child development 
Team

Julieta Trias (World Bank), Dana McCoy (Harvard University), Kenji Kitamura (Harvard University), Chika Ezeugwu (Harvard University), Jimmy Oliveira (Instituto de Pesquisa e Estratégia Econômica, State of Ceará, Brazil)

World Bank TTLJulieta Trias