A randomized trial of the digital Down Syndrome LanguagePlus (DSL+) vocabulary intervention program

Næss, Kari-Anne B., Hokstad, Silje, Engevik, Liv Inger, Lervåg, Arne and Smith, Elizabeth ORCID: https://orcid.org/0000-0002-3509-695X 2022. A randomized trial of the digital Down Syndrome LanguagePlus (DSL+) vocabulary intervention program. Remedial and Special Education 43 (5) , pp. 314-327. 10.1177/07419325211058400

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Abstract

This study investigated the effect of the digital Down Syndrome LanguagePlus (DSL+) intervention on vocabulary outcomes through a school-delivered randomized controlled trial. A national sample of first graders with Down syndrome from 91 schools was allocated to an intervention group (n = 50), which received daily intervention for 15 weeks, or a business-as-usual control group (n = 53). The intervention involved picture book sharing and structured tasks and was organized as one-to-one, small-group, and full-class lessons. Children in the intervention group made greater gains than children in the control group in expressive vocabulary breadth (d = .429, CI [.160, .699]) and receptive vocabulary breadth (d = .447, CI [.193, .700]). The outcomes indicate that the novel DSL+ intervention is an effective intervention to increase trained vocabulary among first graders with Down syndrome, and it takes only 15 minutes of effort 5 days a week.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology
Publisher:	SAGE
ISSN:	0741-9325
Date of First Compliant Deposit:	26 October 2021
Date of Acceptance:	18 October 2021
Last Modified:	11 May 2023 06:40
URI:	https://orca.cardiff.ac.uk/id/eprint/145071

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