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Direct linkMalanchini, Margherita; Tosto, Maria G.; Garfield, Victoria; Dirik, Aysegul; Czerwik, Adrian; Arden, Rosalind; Malykh, Sergey; Kovas, Yulia – Child Development, 2016
The study examined the etiology of individual differences in early drawing and of its longitudinal association with school mathematics. Participants (N = 14,760), members of the Twins Early Development Study, were assessed on their ability to draw a human figure, including number of features, symmetry, and proportionality. Human figure drawing was…
Descriptors: Preschool Children, Preschool Education, Freehand Drawing, Mathematics Skills
Harlaar, Nicole; Trzaskowski, Maciej; Dale, Philip S.; Plomin, Robert – Child Development, 2014
The genetic effects on individual differences in reading development were examined using genome-wide complex trait analysis (GCTA) in a twin sample. In unrelated individuals (one twin per pair, n = 2,942), the GCTA-based heritability of reading fluency was ~20%-29% at ages 7 and 12. GCTA bivariate results showed that the phenotypic stability of…
Descriptors: Reading Skills, Twins, Genetics, Individual Differences
Harlaar, Nicole; Deater-Deckard, Kirby; Thompson, Lee A.; DeThorne, Laura S.; Petrill, Stephen A. – Child Development, 2011
This study used a cross-lagged twin design to examine reading achievement and independent reading from 10 to 11 years (n = 436 twin pairs). Reading achievement at age 10 significantly predicted independent reading at age 11. The alternative path, from independent reading at age 10 to reading achievement at age 11, was not significant. Individual…
Descriptors: Twins, Independent Reading, Reading Achievement, Genetics
Lemelin, Jean-Pascal; Boivin, Michel; Forget-Dubois, Nadine; Dionne, Ginette; Seguin, Jean R.; Brendgen, Mara; Vitaro, Frank; Tremblay, Richard E.; Perusse, Daniel – Child Development, 2007
Using a genetic design of 840 60-month-old twins, this study investigated the genetic and environmental contributions to (a) individual differences in four components of cognitive school readiness, (b) the general ability underlying these four components, and (c) the predictive association between school readiness and school achievement. Results…
Descriptors: School Readiness, Academic Achievement, Genetics, Etiology
McEwen, Fiona; Happe, Francesca; Bolton, Patrick; Rijsdijk, Fruhling; Ronald, Angelica; Dworzynski, Katharina; Plomin, Robert – Child Development, 2007
Imitation, vocabulary, pretend play, and socially insightful behavior were investigated in 5,206 same- and opposite-sex 2-year-old twin pairs in the United Kingdom. Individual differences in imitative ability were due to modest heritability (30%), while environmental factors shared between twins (42%) and unique to each twin (28%) also made…
Descriptors: Foreign Countries, Teaching Methods, Twins, Play
Peer reviewedScarr, Sandra; McCartney, Kathleen – Child Development, 1983
Proposes a theory of development in which experience is directed by genotypes and in which genotypic differences affect phenotypic differences, both directly and through experience, via three kinds of genotype-environment effects. The theory adapts the three kinds of genotype-environment correlations in a developmental model used to explain…
Descriptors: Biological Influences, Children, Experience, Genetics
Peer reviewedPlomin, Robert – Child Development, 1983
Provides an introduction to a special section on developmental behavioral genetics (the study of genetic and environmental influences on individual differences in behavioral development), discussing the potentialities of the interdiscipline and presenting an overview of the following articles. (Author/RH)
Descriptors: Behavior Development, Child Development, Children, Genetics
Peer reviewedMatheny, Adam P., Jr. – Child Development, 1983
Factor scores from Bayley's Infant Behavior Record (obtained from 300 to 400 infants at six, 12, 18, and 24 months) were selected to represent three aspects of infant behavior: task orientation, test affect-extraversion, and activity. Findings indicate reordering of individual differences is age-related and that the reordering sequence is somewhat…
Descriptors: Age Differences, Genetics, Individual Differences, Infant Behavior
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
Peer reviewedEmde, Robert N.; And Others – Child Development, 1992
Assessments of temperament, emotion, cognition, and language acquisition were obtained for 200 pairs of 14-month-old twins. Comparisons between the assessment correlations for identical and fraternal twins indicated an influence of genetics on inhibition, activity, temperament, empathy, negative emotion, spatial memory, categorization skills, and…
Descriptors: Cognitive Development, Emotional Development, Genetics, Individual Differences
Peer reviewedLaBuda, Michele C.; And Others – Child Development, 1986
A path model of genetic and shared family environmental transmission was fitted to general cognitive ability data from 1-, 2-, 3-, and 4-year-old adopted and nonadopted children and their parents to assess the etiology of longitudinal stability from infancy to early childhood. (HOD)
Descriptors: Adoption, Behavior Development, Cognitive Ability, Cognitive Development
Peer reviewedCleveland, 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
Peer reviewedScarr, Sandra – Child Development, 1992
Argues that an evolutionary perspective can unite the study of species-typical development and individual variation. Provides examples from the domains of personality, social, and intellectual development. Maintains that understanding the ways in which genes and environments work together helps developmentalists identify children who need…
Descriptors: Academic Achievement, Behavior Development, Child Development, Child Rearing
