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https://hdl.handle.net/1959.11/11198
Title: | The Etiology of Individual Differences in Second Language Acquisition in Australian School Students: A Behavior-Genetic Study | Contributor(s): | Coventry, William L (author) ; Anton-Mendez, Ines (author) ; Ellis, Elizabeth M (author); Levisen, Christina (author); Byrne, Brian J (author) ; van Daal, Victor H P (author); Ellis, Nick C (author) | Publication Date: | 2012 | DOI: | 10.1111/j.1467-9922.2012.00718.x | Handle Link: | https://hdl.handle.net/1959.11/11198 | Abstract: | We present one of the first behavior-genetic studies of individual differences in school students' levels of achievement in instructed second language acquisition (ISLA). We assessed these language abilities in Australian twin pairs (maximum N pairs = 251) by means of teacher ratings, class rankings, and self-ratings of proficiency, and used the classic twin design to estimate the relative influences of genes, shared (family/school) environment, and unique environment. Achievement in ISLA was more influenced by additive genetic effects (72%, 68%, and 38% for teacher ratings, class rankings, and twin self-ratings, respectively) than by shared environment effects, which were generally not substantial (20%, 07%, and 13%). Genetic effects distinct to speaking and listening, on the one hand, and reading and writing, on the other, were evident for the twin self-ratings. We discuss the limitations and implications of these findings and point to research questions that could profitably be addressed in future studies. | Publication Type: | Journal Article | Source of Publication: | Language Learning, 62(3), p. 880-901 | Publisher: | John Wiley & Sons, Inc | Place of Publication: | United States of America | ISSN: | 1467-9922 0023-8333 |
Fields of Research (FoR) 2008: | 170199 Psychology not elsewhere classified | Fields of Research (FoR) 2020: | 520199 Applied and developmental psychology not elsewhere classified | Socio-Economic Objective (SEO) 2008: | 970117 Expanding Knowledge in Psychology and Cognitive Sciences | Socio-Economic Objective (SEO) 2020: | 280121 Expanding knowledge in psychology | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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