Title |
Genetic and Environmental Influences on Vocabulary and Reading Development
|
---|---|
Published in |
Scientific Studies of Reading, January 2011
|
DOI | 10.1080/10888438.2011.536128 |
Pubmed ID | |
Authors |
Richard K. Olson, Janice M. Keenan, Brian Byrne, Stefan Samuelsson, William L. Coventry, Robin Corley, Sally J. Wadsworth, Erik G. Willcutt, John C. DeFries, Bruce F. Pennington, Jacqueline Hulslander |
Abstract |
Genetic and environmental relations between vocabulary and reading skills were explored longitudinally from preschool through grades 2 and 4. At preschool there were strong shared-environment and weak genetic influences on both vocabulary and print knowledge, but substantial differences in their source. Separation of etiology for vocabulary and reading continued for word recognition and decoding through grade 4, but genetic and environmental correlations between vocabulary and reading comprehension approached unity by grade 4, when vocabulary and word recognition accounted for all of the genetic and shared environment influences on reading comprehension. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 3 | 4% |
Greece | 1 | 1% |
Sweden | 1 | 1% |
Canada | 1 | 1% |
Unknown | 74 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 14 | 18% |
Student > Master | 9 | 11% |
Researcher | 8 | 10% |
Professor > Associate Professor | 8 | 10% |
Student > Doctoral Student | 7 | 9% |
Other | 18 | 23% |
Unknown | 16 | 20% |
Readers by discipline | Count | As % |
---|---|---|
Psychology | 30 | 38% |
Social Sciences | 15 | 19% |
Linguistics | 6 | 8% |
Neuroscience | 4 | 5% |
Arts and Humanities | 2 | 3% |
Other | 5 | 6% |
Unknown | 18 | 23% |