This longitudinal, population-based and prospective study investigated the stability, age-related changes, and socio-emotional outcomes of shyness from infancy to early adolescence. A sample of 921 children was followed from ages 1.5 to 12.5 years. Parent-reported shyness was assessed at five time points and maternal- and self-reported social…

This study addressed the question of developmental processes underlying gender differences in aggression. Specifically, the study examined stories young children tell about nice or mean social interactions. A total of 100 middle-class 3-year-olds participated in storytelling sessions with trained experimenters. Subjects also completed the Peer…