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Rice, Mabel L. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: This review article summarizes a program of longitudinal investigation of twins' language acquisition with a focus on causal pathways for specific language impairment (SLI) and nonspecific language impairment in children at 4 and 6 years with known history at 2 years. Method: The context of the overview is established by legacy scientific…
Descriptors: Twins, Genetics, Language Impairments, Age Differences
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Topbas, Seyhun; Unal, Ozlem – Clinical Linguistics & Phonetics, 2010
A single-subject alternating treatment design in combination with a staggered multiple baseline model across subjects was implemented with two 6:0 year-old girls, monozygotic twins, who were referred to a university clinic for evaluation and treatment. The treatment programme was structured according to variants of "minimal pair contrast…
Descriptors: Twins, Phonemes, Phonology, Speech Impairments