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The linguistic and cognitive abilities of adults with Down syndrome were compared to those of adults with mental retardation of unknown etiology matched for mental and chronological age. Linguistic data consisted of verbal responses to an elicitation procedure that tested for forty-three different linguistic constructions. Cognitive tests measured(More)
The ability to comprehend syntactically ordered sequence by Down's syndrome adults and adults with mental retardation of no specific aetiology was studied. Both samples exhibited patterns of comprehension that resembled those of children who are not mentally retarded. However, the Down's syndrome individuals had significantly more difficulty when sequence(More)
Data from a study designed to elicit the criteria lay people use in judging whether speakers are mentally retarded or not retarded on the basis of speech samples were analysed to determine the factors explicitly stated to be the principal criteria. Two distinct patterns were discovered. In judging speakers as 'mentally retarded', a single feature of voice,(More)
Referential first mentions in narrative reports of a short film by 40 mildly mentally retarded adults and 20 nonretarded adults were compared. The mentally retarded sample included equal numbers of male and female, and black and white speakers. The mentally retarded speakers made significantly fewer first mentions and significantly more errors in the form(More)
We found, not surprisingly, that most nonretarded adults can either give accurate and adequate sets of directions to their places of residence or recognize their inability to do so and refuse to attempt to give any--86% of those in our sample. We found also that this is the case for many mentally retarded adults who reside in the community--45% of those in(More)
Mentally retarded individuals, their families, and professionals in the service delivery system in the African-American community were interviewed concerning the use of services for the mentally retarded. It was found that African-Americans underutilized available services. Reasons for this included aspects of the service delivery system and features of(More)
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