This study explored developmental and individual differences in intellectual humility (IH) among 127 children ages 6-8. IH was operationalized as children's assessment of their knowledge and willingness to delegate scientific questions to experts. Children completed measures of IH, theory of mind, motivational framework, and intelligence, and…

The study examined the etiology of individual differences in early drawing and of its longitudinal association with school mathematics. Participants (N = 14,760), members of the Twins Early Development Study, were assessed on their ability to draw a human figure, including number of features, symmetry, and proportionality. Human figure drawing was…

Among 120 fourth and sixth graders, correlations between intelligence scores and agency beliefs for effort decreased with increasing levels of reasoning about effort and ability. Correlations between intelligence scores and agency beliefs for ability increased with increasing levels of reasoning. (RH)

Data from an early intervention program for children at risk for developmental retardation were used to investigate two kinds of intellectual plasticity: developmental functions and individual differences. Possible convergences between the two realms of development are examined. (Author/RH)

Argues that an evolutionary perspective can unite the study of species-typical development and individual variation. Provides examples from the domains of personality, social, and intellectual development. Maintains that understanding the ways in which genes and environments work together helps developmentalists identify children who need…