Can well-documented gender differences in evaluations of prosocial versus antisocial actions found in childhood and adulthood be traced to sex differences in basic sociomoral preferences in infancy? We provide an answer to this question by meta-analyzing sex differences in preference for prosocial over antisocial agents in a set of 53 samples of…

Around the world, musical engagement frequently involves movement. Most adults easily clap or sway to a wide range of tempos, even without formal musical training. The link between movement and music emerges early--young infants move more rhythmically to music than speech, but do not reliably align their movements to the beat. Laboratory work…

Recent studies demonstrate that emerging literacy depends on earlier language achievement. Importantly, most extant work focuses on "parent-reported production" prior to 30 months of age. Of interest is whether and how "directly assessed vocabulary comprehension" in the 2nd year of life supports vocabulary and kindergarten…

Examined cultural variation in management of attention by 14- to 20-month olds and caregivers from Guatemalan Mayan community and middle-class community of U.S. European-descent families. Found that Mayan caregivers and toddlers were more likely to attend simultaneously to spontaneously occurring competing events than were U.S. caregivers and…

Assessed temperament of children of 5-42 months of age. A Q-sort measure was used to assess children's attachment security between 12 and 45 months. Analysis of results revealed an association between temperament and attachment security at all ages. (BC)