The contribution of intentionality understanding to symbolic development was examined. Actors added colored dots to a map, displaying either symbolic or aesthetic intentions. In Study 1, most children (5-6 years) understood actors' intentions, but when asked which graphic would help find hidden objects, most selected the incorrect (aesthetic) one…

Although the identity formation model is widely used to assess adolescent ethnic identity development, the model propositions have rarely been tested. The existence of the identity statuses (diffuse, foreclosed, moratorium, achieved), the proposed developmental trajectories, and whether youth in the achieved status report higher levels of…

To characterize cognitive maturation through adolescence, processing speed, voluntary response suppression, and spatial working memory were measured in 8- to 30-year-old (N=245) healthy participants using oculomotor tasks. Development progressed with a steep initial improvement in performance followed by stabilization in adolescence. Adult-level…

Experimental group mothers reported significantly greater self-confidence and satisfaction with mothering and more favorable perception of infant temperament than did control group mothers. Differences between children on cognitive scores became significant at 36 and 48 months of age, when the experimental group caught up with normal children. (RH)