Genetic and environmental influences on reading and listening comprehension
Article first published online: 17 JAN 2006
Journal of Research in Reading
Volume 29, Issue 1, pages 75–91, February 2006
How to Cite
Keenan, J. M., Betjemann, R. S., Wadsworth, S. J., DeFries, J. C. and Olson, R. K. (2006), Genetic and environmental influences on reading and listening comprehension. Journal of Research in Reading, 29: 75–91. doi: 10.1111/j.1467-9817.2006.00293.x
- Issue published online: 17 JAN 2006
- Article first published online: 17 JAN 2006
- Received 9 May 2005; revised version received 23 May 2005.
We report preliminary behaviour genetic analyses of reading and listening comprehension from The Colorado Learning Disabilities Research Center. Although the twin sample with these new measures is still of limited size, we find substantial, and significant, genetic influences on individual differences in both reading and listening comprehension. In addition, word recognition and listening comprehension each accounted for significant independent genetic influences on reading comprehension. Together, they accounted for all the genetic influence on reading comprehension, indicating a largely genetic basis for the ‘simple model’ of individual differences in reading comprehension proposed by Hoover and Gough (1990).