Language Impairment From 4 to 12 Years: Prediction and Etiology


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… (More)
DOI: 10.1044/2013_JSLHR-L-12-0240