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Tucker-Drob, Elliot M.; Harden, K. Paige – Journal of Child Psychology and Psychiatry, 2013
Background: Preschool involves an array of new social experiences that may impact the development of early externalizing behavior problems over the transition to grade school. Methods: Using longitudinal data from a nationally representative sample of over 600 pairs of US twins, we tested whether the genetic and environmental influences on…
Descriptors: Intelligence, Behavior Problems, Genetics, Etiology