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Johnson, Wendy; McGue, Matt; Iacono, William G. – Learning and Individual Differences, 2007
Using the biological and adoptive families in the Minnesota-based Sibling Interaction and Behavior Study, we investigated the associations among genetic and environmental influences on IQ, parenting, parental expectations for offspring educational attainment, engagement in school, and school grades. All variables showed substantial genetic…
Descriptors: Grades (Scholastic), Educational Attainment, Child Rearing, Intelligence Quotient