Structure and coherence of reasoning ability in Down Syndrome adults and typically developing children.

Full Abstract

The present study investigates the ability of Down Syndrome (DS) adults to reason:
(a) deductively with transitivity (linear and reverse relations) and categorical syllogisms (all-some relations); (b) inductively with classical verbal analogies and non-verbal analogical reasoning (Raven's Coloured Progressive Matrices); and (c) to retain information in short-term memory. The results have shown that:
(i) The Down Syndrome adults did not differ from typically developing children, matched on expressive and verbal ability, in transitivity and non-verbal analogical thinking; (ii) they differed in categorical reasoning, classical verbal analogies and short-term memory. Application of a structural model demonstrated that, despite differences in slope means in the three measures, the structure of functioning within-and-across all domains of cognition tests and its growth pattern, equally reliable and coherent, goes in parallel for the Down Syndrome adults and the typically developing children. The results are discussed within the context of the two-group developmental and difference approach.

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Author information

Author/s: Natsopoulo, D (D); Christou, C (C); Koutselini, M (M); Raftopoulos, A (A); Karefillidou, C (C);

Affiliation: Department of Education. University of Cyprus, Nicosia, Cyprus. ednats@ucy.ac.cy

Journal and publication information

Publication Type: Journal Article

Journal: Research in developmental disabilities (Res Dev Disabil), published in United States. (Language: eng)

Reference: -2002 Jul-Aug; vol 23 (issue 4) : pp 297-307

Dates: Created 2002/10/07; Completed 2003/03/19; Revised 2004/11/17;

PMID: 12365854, status: MEDLINE (last retrieval date: 11/6/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Child, Preschool
Concept Formation
Down Syndrome - diagnosis; psychology
Female
Humans

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