Maintains author's interpretation of 6-month-olds' behavior is consistent with task requirements in the 2000 study and previous work showing that infants use explanatory inferences to make sense of their world. Asserts that ability to understand that people communicate with persons but act on objects is precursor to infants' understanding at 9 to…

Two experiments involving students from grades 1-2 and 5-6 found strong connections between development and forgetting rates when the influences of learning ability were eliminated. Findings eliminated a hypothesis based on age variability in overlearning. (RH)

The hypothesis that differences in definitions of perceived internality in Piagetian and locus of control viewpoints account for paradoxical findings was tested empirically using two independent samples of children. Results suggest that perceived internality depends on the aspects of means-ends beliefs on which one focuses.

Suggests that the findings of Legerstee, Barna, and DiAdamo (2000) are most parsimoniously explained by associative learning and may not constitute a precursor to later understanding of intentionality. Argues for the importance of differentiating between associative and inferential processes and reviews evidence that the understanding of…

Examined effects of early parental employment on children, using data from National Longitudinal Survey of Youth. Found that more work hours were associated with slightly lower cognitive development through age 9 and lower academic achievement before age 7, but not with behavior problems, compliance, or self-esteem. Early parental employment was…