Article
Language impairment from 4 to 12 years: prediction and etiology.
Journal of speech, language, and hearing research : JSLHR - 1 Jun 2014
Hayiou-Thomas Marianna E, Dale Philip S, Plomin Robert
Abstract excerpt
PURPOSE: The authors of this article examined the etiology of developmental language impairment (LI) at 4 and 12 years of age, as well as the relationship between the 2. METHOD: Phenotypic and quantitative genetic analyses using longitudinal data from the Twins Early Development Study (Oliver & Plomin, 2007) were conducted. A total of 2,923 pairs of twins (1,075 monozygotic [MZ]; 975 dizygotic same sex [DZss];...
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