In one of the first open diffusion experiments with young children, a tool-use task that afforded multiple methods to extract an enclosed reward and a child model habitually using one of these methods were introduced into different playgroups. Eighty-eight children, ranging in age from 2 years 8 months to 4 years 5 months, participated. Measures…

To examine the implications of differences in reflection-impulsivity for later academic achievement, 70 children were administered the Matching Familiar Figures test (MFF) in grade 4 and the Comprehensive Tests of Basic Skills (CTBS) in grades 4, 5, and 6. (Author/JMB)

The unique relations of effortful control and impulsivity to resiliency and adjustment were examined when children were 4.5 to 8 years old, and 2 years later. Parents and teachers reported on all constructs and children's attentional persistence was observed. In concurrent structural equation models, effortful control and impulsivity uniquely and…