Causes of stability of aggression from early childhood to adolescence: a longitudinal genetic analysis in Dutch twins.

摘要: This study investigated the contribution of genetic and environmental influences on stability aggressive behavior from early childhood to adolescence. Two developmental models, simplex model common factor model, were tested underlying processes change. Measures (AGG) obtained maternal CBCL data as part a large ongoing longitudinal Netherlands Twin Registers (NTR) included 6488 three-year-old twin pairs, 5475 seven-year-old 2983 ten-year-old 1509 twelve-year-old pairs. AGG showed moderate high during childhood. The coefficients ranged 0.41 0.77 across varying intervals. Averaged boys girls, factors accounted for approximately 65% total stability. Longitudinal analysis indicated effects, which suggests dynamic development process consisting transmission existing effects interacting with new influences. is especially true at age 7, when influence was large. Shared 25% phenotypic stability, it seemed that stable set same shared underlay AGG. Nonshared factors, important, are specific. Sex-specific differences identified. For boys, greater, whereas girls more important. These support idea both play role in 3 12.