Kindergarten components of executive function and third grade achievement: A national study

Abstract

The present study uses nationally-representative data to estimate longitudinal associations between core executive function (EF) components—working memory, inhibitory control, and cognitive flexibility—at kindergarten entry and third grade academic achievement. We focus on one key question: to what extent do EF components uniquely contribute to children’s subsequent reading and math achievement over and above academic skills, social-emotional behaviors, and learning-related behaviors? Study findings indicated that the three core EF components have differential associations with third grade achievement. Evidence of associations across domains of math and reading achievement are strongest for working memory, and these associations are stronger for math than reading achievement. Early working memory was also shown to be just as predictive of academic achievement as were learning-related behaviors. The evidence for achievement associations was weaker for inhibitory control and cognitive flexibility, with estimated effect sizes on reading and math achievement of less than a tenth of a standard deviation. We discuss implications for future studies and consider the measurement issues that arise in examining EF and its relations to longitudinal achievement.