Next Article in Journal
Integrating Hot and Cool Intelligences: Thinking Broadly about Broad Abilities
Next Article in Special Issue
Validity of the Worst Performance Rule as a Function of Task Complexity and Psychometric g: On the Crucial Role of g Saturation
Previous Article in Journal
Moving to the Double-Blind Review System
Brief Report

Phenotypic, Genetic, and Environmental Correlations between Reaction Times and Intelligence in Young Twin Children

1
Management and Organizational Studies, Faculty of Social Science, The University of Western Ontario, London, ON N6A 5C2, Canada
2
Department of Psychology, The University of Western Ontario, London, ON N6A 5C2, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Oliver Wilhelm
J. Intell. 2015, 3(4), 160-167; https://doi.org/10.3390/jintelligence3040160
Received: 20 May 2015 / Revised: 11 September 2015 / Accepted: 11 December 2015 / Published: 17 December 2015
(This article belongs to the Special Issue Mental Speed and Response Times in Cognitive Tests)
Phenotypic, genetic, and environmental correlations between various reaction time measures and intelligence were examined in a sample of six-year-old twin children (N = 530 individuals). Univariate genetic analyses conducted on the same-sex pairs (101 monozygotic (MZ) pairs and 132 same-sex dizygotic (DZ) pairs) demonstrated that the intelligence measure and four of the seven reaction time measures had a genetic component (ranging from 44% to 76%). At the phenotypic level, half of the reaction time measures had significant negative correlations with the intelligence measure. Bivariate genetic analyses revealed that only two of the observed phenotypic correlations could be explained by common genetic factors and that the remaining correlations were better explained by common environmental factors. View Full-Text
Keywords: intelligence; ability; twins; behaviour genetics intelligence; ability; twins; behaviour genetics
MDPI and ACS Style

Schermer, J.A.; Vernon, P.A. Phenotypic, Genetic, and Environmental Correlations between Reaction Times and Intelligence in Young Twin Children. J. Intell. 2015, 3, 160-167. https://doi.org/10.3390/jintelligence3040160

AMA Style

Schermer JA, Vernon PA. Phenotypic, Genetic, and Environmental Correlations between Reaction Times and Intelligence in Young Twin Children. Journal of Intelligence. 2015; 3(4):160-167. https://doi.org/10.3390/jintelligence3040160

Chicago/Turabian Style

Schermer, Julie A., and Philip A. Vernon. 2015. "Phenotypic, Genetic, and Environmental Correlations between Reaction Times and Intelligence in Young Twin Children" Journal of Intelligence 3, no. 4: 160-167. https://doi.org/10.3390/jintelligence3040160

Find Other Styles

Article Access Map by Country/Region

1
Back to TopTop