Developmental Trajectories of Reading Ability in Adolescents with Intellectual Disabilities

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Bibliographic Details
Title: Developmental Trajectories of Reading Ability in Adolescents with Intellectual Disabilities
Language: English
Authors: Karin Nilsson (ORCID 0000-0001-5896-7159), Åsa Elwér (ORCID 0000-0001-7824-1750), David Messer (ORCID 0000-0001-9332-1265), Lucy Henry (ORCID 0000-0001-5422-4358), Henrik Danielsson (ORCID 0000-0002-0446-0827)
Source: International Journal of Disability, Development and Education. 2026 73(1):146-162.
Availability: Routledge. Available from: Taylor & Francis, Ltd. 530 Walnut Street Suite 850, Philadelphia, PA 19106. Tel: 800-354-1420; Tel: 215-625-8900; Fax: 215-207-0050; Web site: http://www.tandf.co.uk/journals
Peer Reviewed: Y
Page Count: 17
Publication Date: 2026
Document Type: Journal Articles
Reports - Research
Descriptors: Students with Disabilities, Intellectual Disability, Adolescents, Reading Skills, Decoding (Reading), Reading Comprehension, Phonological Awareness, Short Term Memory, Vocabulary, Naming, Developmental Stages, Foreign Countries
Geographic Terms: Sweden
Assessment and Survey Identifiers: Peabody Picture Vocabulary Test, Wechsler Intelligence Scale for Children
DOI: 10.1080/1034912X.2024.2403391
ISSN: 1034-912X
1465-346X
Abstract: Individuals with ID often struggle with decoding and reading comprehension, and some studies indicate that these students do not progress beyond the early stages of decoding development. The aim of this study was to investigate the developmental trajectories of reading abilities in relation to mental age in a sample of 136 adolescents with mild, non-specific ID. Decoding and reading comprehension, together with their predictors of phonological awareness, RAN, phonological working memory, and vocabulary, were fitted against mental age. The results showed that, after 105 months, there was an unexpected plateau in the development of decoding, phonological awareness, rapid automatised naming (RAN), and phonological working memory in this sample, while reading comprehension and vocabulary continued to show growth in relation to mental age. The implications of these different trajectories are discussed in relation to developmental models of disability, and possible reasons for the plateau in decoding are suggested.
Abstractor: As Provided
Notes: https://doi.org/10.17605/OSF.IO/Q7MTC
Entry Date: 2026
Accession Number: EJ1504282
Database: ERIC
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