- MRC Applied Psychology Unit. Cambridge. U.K.
- Correspondence address: Requests for reprints to: Dr Dorothy Bishop. MRC Applied Psychology Unit. 15 Chaucer Road, Cambridge, CB2 2EF, U.K.
- Pennsylvania Stale University, U.S.A.
- National Hospitals College of Speech Sciences, London, U.K.
The Children's Nonword Repetition Test (CNRep) was given to 39 children with persistent language impairment (LI), 13 with a history of having received speech‐language therapy (resolved LI), and 79 controls, all aged from 7 to 9 years. The children with LI were twins who had participated in a previous genetic study. Children with resolved LI, as well as those with persistent LI. were significantly impaired on the CNRep. Comparisons of MZ and DZ twins indicated significant heritability of a CNRep deficit. It is concluded that CNRep provides a marker of the phenotype of heritable forms of developmental language impairment.
- 1 - social science ; 2 - psychology, developmental ; 2 - psychiatry
- 1 - science ; 2 - psychology
- 1 - health sciences ; 2 - psychology & cognitive sciences ; 3 - developmental & child psychology
- 1 - Health Sciences ; 2 - Medicine ; 3 - Psychiatry and Mental health
- 1 - Social Sciences ; 2 - Psychology ; 3 - Developmental and Educational Psychology
- 1 - Health Sciences ; 2 - Medicine ; 3 - Pediatrics, Perinatology, and Child Health
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