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Engelhardt, Laura E.; Church, Jessica A.; Paige Harden, K.; Tucker-Drob, Elliot M. – Developmental Science, 2019
Behavioral and molecular genetic research has established that child cognitive ability and academic performance are substantially heritable, but genetic variation does not account for all of the stratification of cognitive and academic outcomes across families. Which specific contexts and experiences contribute to these "shared…
Descriptors: Cognitive Ability, Academic Achievement, Twins, Genetics
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Asbury, Kathryn; Dunn, Judith F.; Plomin, Robert – Developmental Science, 2006
This longitudinal monozygotic (MZ) twin differences study explored associations between birthweight and early family environment and teacher-rated behaviour problems and academic achievement at age 7. MZ differences in anxiety, hyperactivity, conduct problems, peer problems and academic achievement correlated significantly with MZ differences in…
Descriptors: Behavior Problems, Academic Achievement, Hyperactivity, Effect Size