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Direct linkSteven Glazerman; Larissa Campuzano; Nancy Murray – Evaluation Review, 2025
Randomized experiments involving education interventions are typically implemented as cluster randomized trials, with schools serving as clusters. To design such a study, it is critical to understand the degree to which learning outcomes vary between versus within clusters (schools), specifically the intraclass correlation coefficient. It is also…
Descriptors: Educational Experiments, Foreign Countries, Educational Assessment, Research Design
Miller, Ann C.; Rumaldo, Nancy; Soplapuco, Guadalupe; Condeso, Alicia; Kammerer, Betsy; Lundy, Shannon; Faiffer, Fabiola; Montañez, Andy; Ramos, Karen; Rojas, Naysha; Contreras, Carmen; Muñoz, Maribel; Valdivia, Hilda; Vilca, Daojing; Córdova, Nandy; Hilario, Patricia; Vibbert, Martha; Lecca, Leonid; Shin, Sonya – Child Development, 2021
This study is a randomized controlled trial of a 12-week community-based group parenting intervention ("CASITA") in Lima, Peru. CASITA improved neurodevelopment in a pilot study of 60 Peruvian children and subsequently scaled to 3,000 households throughout the district. The objective of this study was to assess intervention effectiveness…
Descriptors: Foreign Countries, Parents, Infants, Intervention
