Continuities in sibling relationships: patterns of aggression and friendliness.
Thirteen girls and 12 boys who had been observed at home as 2- to 3-year-olds with their mothers and infant siblings were interviewed as 6-year-olds about their relationship with their siblings; their mothers also were interviewed. The marked individual differences found among the 2- to 3-year-olds in comments about their siblings were correlated with differences in the children's comments about their siblings 3-4 years later, and the differences in their behaviour towards their siblings as 2- to 3-year-olds were correlated with differences in their mothers' accounts of the sibling relationship at the 6-year visits.
D000374:Aggression / Q000523:psychology*; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007398:Interpersonal Relations; D007406:Interview, Psychological; D008297:Male; D009035:Mothers; D012801:Sibling Relations