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van Soelen, Inge L. C.; van den Berg, Stephanie M.; Dekker, Peter H.; van Leeuwen, Marieke; Peper, Jiska S.; Hulshoff Pol, Hilleke E.; Boomsma, Dorret I. – Learning and Individual Differences, 2009
We explored the genetic background of individual differences in dynamic measures of verbal learning ability in children, using a Dutch version of the Auditory Verbal Learning Test (AVLT). Nine-year-old twin pairs (N = 112 pairs) were recruited from the Netherlands Twin Register. When possible, an older sibling between 10 and 14 years old…
Descriptors: Twins, Verbal Learning, Genetics, Individual Differences
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Hoekstra, Rosa A.; Bartels, Meike; van Leeuwen, Marieke; Boomsma, Dorret I. – Developmental Science, 2009
The etiology of individual differences in general verbal ability, verbal learning and letter and category fluency were examined in two independent samples of 9- and 18-year-old twin pairs and their siblings. In both age groups, we observed strong familial resemblance for general verbal ability and moderate familial resemblance for verbal learning,…
Descriptors: Twins, Verbal Learning, Late Adolescents, Genetics