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Johnson, Daniel P.; Rhee, Soo Hyun; Whisman, Mark A.; Corley, Robin P.; Hewitt, John K. – Child Development, 2013
This multiwave longitudinal study tested two quantitative genetic developmental models to examine genetic and environmental influences on exposure to negative dependent and independent life events. Participants (N = 457 twin pairs) completed measures of life events annually from ages 9 to 16. The same genetic factors influenced exposure to…
Descriptors: Genetics, Environmental Influences, Experience, Longitudinal Studies
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Essex, Marilyn J.; Boyce, W. Thomas; Hertzman, Clyde; Lam, Lucia L.; Armstrong, Jeffrey M.; Neumann, Sarah M. A.; Kobor, Michael S. – Child Development, 2013
Fifteen-year-old adolescents (N = 109) in a longitudinal study of child development were recruited to examine differences in DNA methylation in relation to parent reports of adversity during the adolescents' infancy and preschool periods. Microarray technology applied to 28,000 cytosine-guanine dinucleotide sites within DNA derived from buccal…
Descriptors: Genetics, Adolescents, Child Development, Longitudinal Studies
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Hurd, Noelle M.; Stoddard, Sarah A.; Zimmerman, Marc A. – Child Development, 2013
This study explored how neighborhood characteristics may relate to African American adolescents' internalizing symptoms via adolescents' social support and perceptions of neighborhood cohesion. Participants included 571 urban, African American adolescents (52% female; "M" age = 17.8). A multilevel path analysis testing both direct and…
Descriptors: Path Analysis, Adolescent Development, Mental Health, African American Students
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Taylor, Marianne G.; Rhodes, Marjorie; Gelman, Susan A. – Child Development, 2009
Two studies (N = 456) compared the development of concepts of animal species and human gender, using a switched-at-birth reasoning task. Younger children (5- and 6-year-olds) treated animal species and human gender as equivalent; they made similar levels of category-based inferences and endorsed similar explanations for development in these 2…
Descriptors: Animals, Classification, Environmental Influences, Inferences
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Saudino, Kimberly J.; Plomin, Robert – Child Development, 2007
Although a negative association between hyperactivity and academic achievement is well documented, little is known about the genetic and/or environmental mechanisms responsible for the association. The present study explored links between parent and teacher ratings of hyperactive behavior problems and teacher-assessed achievement in a sample of…
Descriptors: Behavior Problems, Hyperactivity, Genetics, Academic Achievement
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Iervolino, Alessandra C.; Hines, Melissa; Golombok, Susan E.; Rust, John; Plomin, Robert – Child Development, 2005
The genetic and environmental etiologies of sex-typed behavior were examined during the preschool years in a sample of 3,990 three- to four-year-old twin and nontwin sibling pairs. Results showed moderate genetic and significant shared environmental influence for boys and substantial genetic and moderate shared environmental influence for girls.…
Descriptors: Sex Role, Environmental Influences, Siblings, Twins