Article
Parent-offspring and sibling adoption analyses of parental ratings of temperament in infancy and childhood.
Journal of personality - 1 Dec 1991
Plomin R, Coon H, Carey G, DeFries J C, Fulker D W
Abstract excerpt
A first step toward understanding the etiology of personality is to investigate the relative impact of genetic and environmental factors using twin and adoption designs. Twin studies of infants and young children indicate substantial genetic influence for parental ratings of temperament in the preschool years. Adoption studies, however, have not previously been reported during the early years of life. We present...
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