Genetic and environmental influences on vocabulary IQ: parental education level as moderator.

  title={Genetic and environmental influences on vocabulary IQ: parental education level as moderator.},
  author={David C. Rowe and Kristen C. Jacobson and Edwin J.C.G. van den Oord},
  journal={Child development},
  volume={70 5},
This article examines how parental education level moderates the genetic and environmental contributions to variation in verbal IQ. Data are from 1909 non-Hispanic Whites and African American sibling pairs from the National Longitudinal Study of Adolescent Health, which obtained nationally-based samples of identical (MZ) twins, fraternal (DZ) twins, full and half siblings, cousins (in the same household), and biologically unrelated siblings. In the whole sample, the variance estimate for… 

Figures and Tables from this paper

The moderation of genetic and shared-environmental influences on adolescent drinking by levels of parental drinking.
It is found that, at least for male adolescents, genetic influences on drinking appear to be potentiated by exposure to parental drinking.
School Context and Genetic Influences on Aggression in Adolescence
Genetic and environmental contributions to variation in aggression were examined using adolescents' self-reports of aggressive behavior. The National Longitudinal Study of Adolescent Health provided
Does the heritability of cognitive abilities vary as a function of parental education? Evidence from a German twin sample
Results for general cognitive ability and nonverbal ability indicated no significant gene x parental education interaction effect, and for verbal ability, a significant nonshared environment (E) x parents education interaction was found in the direction of greater nonsharing environmental influences on verbal abilities among children raised by more educated parents.
Does Parental Education have a Moderating Effect on the Genetic and Environmental Influences of General Cognitive Ability in Early Adulthood?
Examination of whether parental education has a moderating effect on genetic and environmental influences of general cognitive ability in early adulthood found a model without moderating effects of parental education on genetic or environmental influences on cognitive scores proved to be the best fitting model.
The moderating role of SES on genetic differences in educational achievement in the Netherlands
EA depended on SES both directly and indirectly, and SES moderated the additive genetic and environmental components of EA, and adding information from PGS improved the prediction of children’s EA.
Achievement and Ascription in Educational Attainment: Genetic and Environmental Influences on Adolescent Schooling
The classic ("status attainment") model of educational and occupational attainment suffers from three related shortcomings when used as a tool for comparative or policy-oriented research on social
Interaction between Parental Education and Twin Correlations for Cognitive Ability in a Norwegian Conscript Sample
Analysis of a sample of Norwegian twin conscripts for evidence of an interaction between parental education and the heritability of general cognitive ability found that the steep decline of DZ twin correlations with increasing mid-parent education resulted in a violation of the classical twin model for much of the parameter space.


Differences in heritability across groups differing in ability
Lower ability subjects show higher heritabilities and lower shared environmentality and this result is attributable to larger differences between DZ twins at low ability levels and to differences between MZ twins, which are either the same across ability level or are smaller atLow ability levels.
Education policy and the heritability of educational attainment
Education data on twins and their parents, from the Norwegian twin panel, provide a unique opportunity to determine the impact on the heritability of educational attainment of the more liberal social and educational policies introduced in Norway after the Second World War.
Differences in heritability across groups differing in ability, revisited
A sample of 148 identical and 135 fraternal twin pairs from the Western Twin Project who were tested on a battery of intelligence and achievement tests suggest no significant differences in heritability at either the high or the low end, although a trend toward higher heritability for children of higher ability is evident.
Genetic and Environmental Contributions to Variance in Age at First Sexual Intercourse
It is likely that biological and psychological characteristics that are partly under genetic control significantly influence the age at which a person commences sexual activity.
Assessment of effects of socio-economic status on IQ in a full cross-fostering study
AN important question in studies of mental ability concerns the effect of parental socio-economic status (SES) on the IQ of their offspring. Only a full cross-fostering study, including children born
Home environment and cognitive ability of 7-year-old children in the Colorado adoption project : genetic and environmental etiologies
Family environment may be related to childhood cognitive abilities either directly through environmental transmission or indirectly through correlations with parental genotypes. Using the methodology
No differential heritability of intelligence test scores across ability levels in norway
Intelligence test data from 862 monozygotic and 1325 dizygotic male twin pairs tested at about 19 years of age were analyzed in search for changes in heritability and shared environmentality as a function of ability level.
Physical similarity and the equal-environment assumption in twin studies of psychiatric disorders
Results for bulimia suggest that physical similarity may significantly influence twin resemblance for this disorder, supporting the validity of the EEA in twin studies of these disorders.