Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.

A well-known hypothesis in the behavioral genetic literature predicts that the heritability of cognitive abilities is higher in the presence of higher socioeconomic contexts. However, studies suggest that the effect of socioeconomic status (SES) on the heritability of cognitive ability may not be un...

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Main Authors: Marion Spengler, Juliana Gottschling, Elisabeth Hahn, Elliot M Tucker-Drob, Claudia Harzer, Frank M Spinath
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5940208?pdf=render
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author Marion Spengler
Juliana Gottschling
Elisabeth Hahn
Elliot M Tucker-Drob
Claudia Harzer
Frank M Spinath
author_facet Marion Spengler
Juliana Gottschling
Elisabeth Hahn
Elliot M Tucker-Drob
Claudia Harzer
Frank M Spinath
author_sort Marion Spengler
collection DOAJ
description A well-known hypothesis in the behavioral genetic literature predicts that the heritability of cognitive abilities is higher in the presence of higher socioeconomic contexts. However, studies suggest that the effect of socioeconomic status (SES) on the heritability of cognitive ability may not be universal, as it has mostly been demonstrated in the United States, but not in other Western nations. In the present study we tested whether the importance of genetic and environmental effects on cognitive abilities varies as a function of parental education in a German twin sample. Cognitive ability scores (general, verbal, and nonverbal) were obtained on 531 German twin pairs (192 monozygotic, 339 dizygotic, ranging from 7 to 14 years of age; Mage = 10.25, SD = 1.83). Data on parental education were available from mothers and fathers. Results for general cognitive ability and nonverbal ability indicated no significant gene x parental education interaction effect. For verbal ability, a significant nonshared environment (E) x parental education interaction was found in the direction of greater nonshared environmental influences on verbal abilities among children raised by more educated parents.
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spelling doaj.art-2d7f751733144801bd7820ff4f5bfe122022-12-21T22:37:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01135e019659710.1371/journal.pone.0196597Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.Marion SpenglerJuliana GottschlingElisabeth HahnElliot M Tucker-DrobClaudia HarzerFrank M SpinathA well-known hypothesis in the behavioral genetic literature predicts that the heritability of cognitive abilities is higher in the presence of higher socioeconomic contexts. However, studies suggest that the effect of socioeconomic status (SES) on the heritability of cognitive ability may not be universal, as it has mostly been demonstrated in the United States, but not in other Western nations. In the present study we tested whether the importance of genetic and environmental effects on cognitive abilities varies as a function of parental education in a German twin sample. Cognitive ability scores (general, verbal, and nonverbal) were obtained on 531 German twin pairs (192 monozygotic, 339 dizygotic, ranging from 7 to 14 years of age; Mage = 10.25, SD = 1.83). Data on parental education were available from mothers and fathers. Results for general cognitive ability and nonverbal ability indicated no significant gene x parental education interaction effect. For verbal ability, a significant nonshared environment (E) x parental education interaction was found in the direction of greater nonshared environmental influences on verbal abilities among children raised by more educated parents.http://europepmc.org/articles/PMC5940208?pdf=render
spellingShingle Marion Spengler
Juliana Gottschling
Elisabeth Hahn
Elliot M Tucker-Drob
Claudia Harzer
Frank M Spinath
Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.
PLoS ONE
title Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.
title_full Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.
title_fullStr Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.
title_full_unstemmed Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.
title_short Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample.
title_sort does the heritability of cognitive abilities vary as a function of parental education evidence from a german twin sample
url http://europepmc.org/articles/PMC5940208?pdf=render
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