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Luo, Yu L. L.; Kovas, Yulia; Haworth, Claire M. A.; Plomin, Robert – Learning and Individual Differences, 2011
The genetic and environmental origins of individual differences in mathematical self-evaluation over time and its association with later mathematics achievement were investigated in a UK sample of 2138 twin pairs at ages 9 and 12. Self-evaluation indexed how good children think they are at mathematical activities and how much they like those…
Descriptors: National Curriculum, Twins, Mathematics Achievement, Etiology
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Haworth, Claire M. A.; Dale, Philip S.; Plomin, Robert – Child Development, 2009
During childhood and adolescence, increases in heritability and decreases in shared environmental influences have typically been found for cognitive abilities. A sample of more than 2,500 pairs of twins from the Twins Early Development Study was used to investigate whether a similar pattern would be found for science performance from 9 to 12…
Descriptors: Twins, Etiology, Environmental Influences, Cognitive Ability
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Haworth, Claire M. A.; Dale, Philip S.; Plomin, Robert – Journal of Child Psychology and Psychiatry, 2009
Background: Are there sex differences in the etiology of high performance in science in childhood that could contribute to the under-representation of women in scientific careers? In this study the relative contributions of genetic and environmental influences on high performance in science in both boys and girls were assessed using standard twin…
Descriptors: Genetics, Twins, Females, Etiology
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Haworth, Claire M. A.; Dale, Philip; Plomin, Robert – International Journal of Science Education, 2008
We investigated for the first time the genetic and environmental aetiology behind scientific achievement in primary school children, with a special focus on possible aetiological differences for boys and girls. For a representative community sample of 2,602 twin pairs assessed at age nine years, scientific achievement in school was rated by…
Descriptors: Twins, Genetics, Environmental Influences, Elementary School Students
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Haworth, Claire M. A.; Kovas, Yulia; Dale, Philip S.; Plomin, Robert – Intelligence, 2008
Using a genetically sensitive design, we investigated the etiology of academic performance in Science in elementary school, and its etiological links with other academic abilities and general cognitive ability ("g"). The sample consisted of over 2000 pairs of twins at 10 years of age from the Twins Early Development Study. Science performance, as…
Descriptors: Twins, Genetics, Etiology, Environmental Influences
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Kovas, Yulia; Haworth, Claire M. A.; Petrill, Stephen A.; Plomin, Robert – Journal of Learning Disabilities, 2007
The genetic and environmental etiologies of 3 aspects of low mathematical performance (math disability) and the full range of variability (math ability) were compared for boys and girls in a sample of 5,348 children age 10 years (members of 2,674 pairs of same-sex and opposite-sex twins) from the United Kingdom (UK). The measures, which we…
Descriptors: National Curriculum, Nature Nurture Controversy, Genetics, Etiology