Journal
PSYCHOLOGICAL SCIENCE
Volume 20, Issue 6, Pages 753-762Publisher
SAGE PUBLICATIONS INC
DOI: 10.1111/j.1467-9280.2009.02366.x
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Funding
- Medical Research Council [G19/2, G0500079(73692), G050079, G0500079] Funding Source: Medline
- NICHD NIH HHS [R01 HD044454-04, HD44454, HD46167, R01 HD044454, R01 HD046167] Funding Source: Medline
- Medical Research Council [G0500079, G9817803B, G19/2] Funding Source: researchfish
- MRC [G19/2, G0500079] Funding Source: UKRI
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Evidence suggests that children's self-perceptions of their abilities predict their school achievement even after one accounts for their tested cognitive ability (IQ). However, the roles of nature and nurture in the association between school achievement and self-perceived abilities (SPAs), independent of IQ, is unknown. Here we reveal that there are substantial genetic influences on SPAs and that there is genetic covariance between SPAs and achievement independent of IQ. Although it has been assumed that the origins of SPAs are environmental, this first genetic analysis of SPAs yielded a heritability of 51% in a sample of 3,785 pairs of twins, whereas shared environment accounted for only 2% of the variance in SPAs. Moreover, multivariate genetic analyses indicated that SPAs predict school achievement independently of IQ for genetic rather than environmental reasons. It should therefore be possible to identify SPA genes that predict school achievement independently of IQ genes..
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