Genetic and environmental mediation of the relationship between language and nonverbal impairment in 4-year-old twins.
This study of 4-year-old twins investigated the genetic and environmental origins of comorbidity between language impairment and nonverbal ability by testing the extent to which language impairment in one twin predicted nonverbal ability in the co-twin. Impairment of language ability was defined as...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2003
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