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Developmental dyscalculia and down syndrome: indicative evidence
journal contribution
posted on 2023-05-20, 07:00 authored by Monica CuskellyMonica Cuskelly, Faragher, RThis study investigated the hypothesis that developmental dyscalculia is part of the behavioural phenotype of Down syndrome. One hundred and fifty-one individuals with Down syndrome across three age groups contributed data. These age groups were: 6–8 years (n = 41); 13–15 years (n = 70); and 20–22 years (n = 40). Data were collected using the Stanford-Binet (Fourth Edition) and age equivalent scores on the Pattern Analysis and Quantitative subscales were used in the analyses. A repeated measure ANOVA showed a significant difference between performances on the two subtests with an interaction with age group. While performance on Pattern Analysis was better than on Quantitative for all groups the difference was most marked for the oldest group. Approximately 66% of the participants had a higher age equivalent score on the Pattern Analysis subscale than on the Quantitative subscale. It appears to be plausible that developmental dyscalculia contributes to the behavioural phenotype of Down syndrome and further investigation of this proposition is warranted.
History
Publication title
International Journal of Disability, Development and EducationVolume
66Pagination
151-161ISSN
1034-912XDepartment/School
Faculty of EducationPublisher
RoutledgePlace of publication
United KingdomRights statement
Copyright 2019 Informa UK Limited, trading as Taylor & Francis GroupRepository Status
- Restricted