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Genetic and Environmental Contributions to the Development of Childhood Aggression
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Lubke, Gitta H.; McArtor, Daniel B.; Boomsma, Dorret I.; Bartels, Meike – Developmental Psychology, 2018
Longitudinal data from a large sample of twins participating in the Netherlands Twin Register (n = 42,827, age range 3-16) were analyzed to investigate the genetic and environmental contributions to childhood aggression. Genetic auto-regressive (simplex) models were used to assess whether the same genes are involved or whether new genes come into…
Descriptors: Foreign Countries, Longitudinal Studies, Twins, Aggression
Beyond Nature versus Nurture: DF Analysis of Nonshared Influences on Problem Behaviors.
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Rodgers, Joseph Lee; And Others – Developmental Psychology, 1994
Two studies of twin, sibling, and cousin pairs among children attempted to extend a model, called DF analysis, which separates hereditary and shared environmental influences. First study supported the validity of DF analysis applied to kinship height and weight data. The second study showed that spanking, reading, and quality of home environment…
Descriptors: Behavior Problems, Body Weight, Children, Environmental Influences
DF Analysis of NLSY IQ/Achievement Data: Nonshared Environmental Influences.
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Rodgers, Joseph Lee; And Others – Intelligence, 1994
An adaptation of the multiple regression approach of De Fries and Fulker (DF analysis) is used to account simultaneously for genetic and environmental influences on achievement. The model was fitted to achievement measures of 1,044 related pairs of children from the National Longitudinal Study of Youth (NLSY). (SLD)
Descriptors: Academic Achievement, Children, Environmental Influences, Genetics