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The Etiology of Mathematical and Reading (Dis)ability Covariation in a Sample of Dutch Twins

Published online by Cambridge University Press:  21 February 2012

Ezra M. Markowitz ,
Gonneke Willemsen ,
Susan L. Trumbetta ,
Toos C. E. M. van Beijsterveldt  and
Dorret I. Boomsma
Ezra M. Markowitz
Affiliation:
Department of Psychology, Vassar College, Poughkeepsie, United States of America; Department of Biological Psychology, Vrije Universiteit, Amsterdam, the Netherlands.
Gonneke Willemsen
Affiliation:
Department of Biological Psychology, Vrije Universiteit, Amsterdam, the Netherlands.
Susan L. Trumbetta
Affiliation:
Department of Psychology, Vassar College, Poughkeepsie, United States of America.
Toos C. E. M. van Beijsterveldt
Affiliation:
Department of Biological Psychology, Vrije Universiteit, Amsterdam, the Netherlands.
Dorret I. Boomsma*
Affiliation:
Department of Biological Psychology, Vrije Universiteit, Amsterdam, the Netherlands. [email protected]
*
*Address for correspondence: Dorret Boomsma, Biological Psychology, Vrije Universiteit, Van der Boechorststraat 1, 1081 BT Amsterdam, the Netherlands.

Abstract

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The genetic etiology of mathematical and reading (dis)ability has been studied in a number of distinct samples, but the true nature of the relationship between the two remains unclear. Data from the Netherlands Twin Register was used to determine the etiology of the relationship between mathematical and reading (dis)ability in adolescent twins. Ratings of mathematical and reading problems were obtained from parents of over 1500 twin pairs. Results of bivariate structural equation modeling showed a genetic correlation around .60, which explained over 90% of the phenotypic correlation between mathematical and reading ability. The genetic model was the same for males and females.

Type
Articles
Information
Twin Research and Human Genetics , Volume 8 , Issue 6 , 01 December 2005 , pp. 585 - 593
Copyright
Copyright © Cambridge University Press 2005