New WWC Intervention Report on Pre-K Mathematics (September 19, 2023)
This new WWC intervention report finds provides strong evidence that "Pre-K Mathematics" improves mathematics achievement, although the intervention had uncertain effects on outcomes in the language domain, reading & literacy related domain, social-emotional learning domain, and self-regulation domain. This assessment is based on five studies that meet WWC standards.
New WWC Methodological Report on Using Bayesian Meta-Analysis to Explore the Components of Early Literacy Interventions (September 12, 2023)
This WWC methodological report explores to what extent components of early literacy interventions can explain which interventions have positive effects on alphabetics outcomes. The components examined in this report have a limited role in explaining variation in intervention effects, but this report identified positive associations between intervention impacts on alphabetics outcomes and components related to using student assessment data to drive decisions and teaching social-emotional learning strategies.