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Swanson, Meghan R.; Shen, Mark D.; Wolff, Jason J.; Boyd, Brian; Clements, Mark; Rehg, James; Elison, Jed T.; Paterson, Sarah; Parish-Morris, Julia; Chappell, J. Chad; Hazlett, Heather C.; Emerson, Robert W.; Botteron, Kelly; Pandey, Juhi; Schultz, Robert T.; Dager, Stephen R.; Zwaigenbaum, Lonnie; Estes, Annette M.; Piven, Joseph – Child Development, 2018
Children's early language environments are related to later development. Little is known about this association in siblings of children with autism spectrum disorder (ASD), who often experience language delays or have ASD. Fifty-nine 9-month-old infants at high or low familial risk for ASD contributed full-day in-home language recordings.…
Descriptors: Infants, Autism, Pervasive Developmental Disorders, Environmental Influences
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McGuire, Shirley; Segal, Nancy L. – Child Development, 2013
Research suggests that sibling--peer connections are important for understanding adolescent problem behaviors. Using a novel behavioral genetic design, the current study investigated peer network overlap in 300 child--child pairs (aged 7-13 years) in 5 dyad types: monozygotic (MZ), dizygotic twins, full siblings (FSs), friend pairs, and virtual…
Descriptors: Siblings, Behavior Problems, Genetics, Children
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D'Onofrio, Brian M.; Singh, Amber L.; Iliadou, Anastasia; Lambe, Mats; Hultman, Christina M.; Neiderhiser, Jenae M.; Langstrom, Niklas; Lichtenstein, Paul – Child Development, 2010
The current study, based on all births in Sweden from 1983 to 1991 (N = 654,707), explored the processes underlying the association between smoking during pregnancy (SDP) and offspring school grades and mathematic proficiency at age 15. The analyses compared relatives who varied in their exposure to SDP and who varied in their genetic relatedness.…
Descriptors: Siblings, Smoking, Academic Achievement, Pregnancy
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Cleveland, H. Harrington; Wiebe, Richard P.; van den Oord, Edwin J. C. G.; Rowe, David C. – Child Development, 2000
Examined influences on children's behavior problems in households defined by marital status and sibling relatedness. Found that genetic influences accounted for 81 to 94 percent of mean-level difference in behavior problems between two-parent/full sibling, and the mother-only/half sibling groups. Shared environmental influences accounted for 67 to…
Descriptors: Behavior Problems, Children, Comparative Analysis, Environmental Influences
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Hay, David A.; O'Brien, Pauline J. – Child Development, 1983
Describes a mixed longitudinal analysis of 1,356 twins, (three to 15-years-old) their siblings, and cousins, who underwent a battery of physical and behavioral tests. The covariance structure analysis method in biometrical genetics was employed to specify determinants of the structure of cognitive abilities, to indicate how these change during…
Descriptors: Cognitive Development, Foreign Countries, Genetics, Longitudinal Studies
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Hughes, Claire; Jaffee, Sara R.; Happ, Francesca; Taylor, Alan; Caspi, Avshalom; Moffitt, Terrie E. – Child Development, 2005
In this study of the origins of individual differences in theory of mind (ToM), the Environmental Risk (E-Risk) Longitudinal Twin Study sample of 1,116 sixty-month-old twin pairs completed a comprehensive battery of ToM tasks. Individual differences in ToM were striking and strongly associated with verbal ability. Behavioral genetic models of the…
Descriptors: Environmental Influences, Verbal Ability, Twins, Individual Differences
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O'Connor, Thomas G.; And Others – Child Development, 1995
The mother, father, and adolescent siblings from 675 families were observed interacting in problem-solving sessions. Siblings were monozygotic twins, dyzygotic twins, or full siblings in nondivorced families and full, half, and unrelated siblings in stepfamilies. Results suggested a greater genetic component to adolescent behavior than to parent…
Descriptors: Adolescents, Environmental Influences, Genetics, Nature Nurture Controversy
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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
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Iervolino, Alessandra C.; Pike, Alison; Manke, Beth; Reiss, David; Hetherington, E. Maris; Plomin, Robert – Child Development, 2002
Examined genetic and environmental contribution to self-reported peer-group characteristics among adoptive and nonadoptive adolescent sibling pairs. Found that although peer preference is influenced, in large part, by nonshared environment factors, genetic influence is present. Substantial genetic influence emerged for college orientation, and…
Descriptors: Adolescents, Environmental Influences, Genetics, Nature Nurture Controversy
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Loehlin, John C.; Neiderhiser, Jenae M.; Reiss, David – Child Development, 2005
Adolescent adjustment measures may be related to each other and to the social environment in various ways. Are these relationships similar in genetic and environmental sources of covariation, or different? A multivariate behaviorgenetic analysis was made of 6 adjustment and 3 treatment composites from the study Nonshared Environment in Adolescent…
Descriptors: Social Environment, Multivariate Analysis, Genetics, Adolescent Development
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McGuire, Shirley; Manke, Beth; Saudino, Kimberly J.; Reiss, David; Hetherington, E. Mavis; Plomin, Robert – Child Development, 1999
This behavioral genetic study examined perceived competence and self-worth in same-sex twins, siblings, and stepsiblings 10 to 18 years old, and again 3 years later. Findings at second assessment showed six of seven subscales heritable. Genetic contributions to stability were found for perceived scholastic competence, athletic competence, physical…
Descriptors: Adolescent Attitudes, Adolescent Development, Adolescents, Competence