Grammar Clinical Marker Yields Substantial Heritability for Language Impairments in 16-Year-Old Twins
Conclusions The heritability of GJ-20 scores, especially at more extreme cutoffs, along with the score distribution and association with other indicators of language impairments, provides additional evidence for the potential value of this measure as a clinical marker of specific language impairment.
Source: Journal of Speech, Language, and Hearing Research - Category: Speech-Language Pathology Source Type: research
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