Background: While delays in cognitive development are detectable during early development in Down syndrome, the neuropsychological and biomedical underpinnings of cognitive skill acquisition in this population remain poorly understood. Method: To explore this issue, 38 infants with Down syndrome [mean chronological age = 9.65 months; SD = 3.64]…

Although 3-year-olds in the United States may attend prekindergarten prior to formal school entry in kindergarten, few investigations focus on the socioemotional foundations of classroom learning at age 3 and their relationship to later achievement. This study examined the relationship between age 3 readiness for group-based learning, modeled as…