Differential heritability across levels of cognitive ability
- 1 March 1992
- journal article
- research article
- Published by Springer Nature in Behavior Genetics
- Vol. 22 (2), 153-162
- https://doi.org/10.1007/bf01066994
Abstract
Differences in heritability and shared environmentality across levels of cognitive ability were assessed in a sample of 264 twin pairs tested at 1 year of age and in subsets tested at 2 and 3 years. Using an extension of the DF multiple regression methodology for analyzing twin data, no evidence was found for a linear or quadratic effect of level of cognitive ability on estimates of heritability or shared environmentality.Keywords
This publication has 12 references indexed in Scilit:
- Increased heritability for lower IQ levels?Behavior Genetics, 1991
- Differences in heritability across groups differing in abilityBehavior Genetics, 1990
- Genetic influence on general mental ability increases between infancy and middle childhoodNature, 1988
- Multiple regression analysis of twin data obtained from selected samplesGenetic Epidemiology, 1986
- Multiple regression analysis of twin dataBehavior Genetics, 1985
- Linearity of offspring-parent regression for general cognitive abilityBehavior Genetics, 1983
- The Louisville Twin Study: Developmental Synchronies in BehaviorChild Development, 1983
- Parent-offspring correlations and regressions for IQBehavior Genetics, 1982
- Aspects of the inheritance of intellectual abilitiesBehavior Genetics, 1982
- Intellectual resemblance among adoptive and biological relatives: The texas Adoption ProjectBehavior Genetics, 1979