Examines the capability and motivation of 18- and 24-month-old infants to share, help, comfort, and cooperate with their older siblings; the frequency of such prosocial behavior by both siblings; and the children's response to sibling distress. The relationship between prosocial and conflict behavior was also studied. (HOD)

Preschool Swedish children were observed with their mothers in situations designed to allow assessment of their compliance with maternal demands. Children were more compliant in the task situation at 40 months when they had experienced high quality care at home, when they were older, and when they had experienced less out-of-home care prior to 24…