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- Title
Developing the Alphabetic Principle to Aid Text-Based Augmentative and Alternative Communication Use by Adults With Low Speech Intelligibility and Intellectual Disabilities.
- Authors
Schmidt-Naylor, Anna C.; Saunders, Kathryn J.; Brady, Nancy C.
- Abstract
Purpose: We explored alphabet supplementation as an augmentative and alternative communication strategy for adults with minimal literacy. Study 1’s goal was to teach onset-letter selection with spoken words and assess generalization to untaught words, demonstrating the alphabetic principle. Study 2 incorporated alphabet supplementation within a naming task and then assessed effects on speech intelligibility. Method: Three men with intellectual disabilities (ID) and low speech intelligibility participated. Study 1 used a multipleprobe design, across three 20-word sets, to show that our computer-based training improved onset-letter selection. We also probed generalization to untrained words. Study 2 taught onset-letter selection for 30 new words chosen for functionality. Five listeners transcribed speech samples of the 30 words in 2 conditions: speech only and speech with alphabet supplementation. Results: Across studies 1 and 2, participants demonstrated onset-letter selection for at least 90 words. Study 1 showed evidence of the alphabetic principle for some but not all word sets. In study 2, participants readily used alphabet supplementation, enabling listeners to understand twice as many words. Conclusions: This is the first demonstration of alphabet supplementation in individuals with ID and minimal literacy. The large number of words learned holds promise both for improving communication and providing a foundation for improved literacy
- Subjects
ALPHABETIC principle (Reading); MEANS of communication for people with intellectual disabilities; MEANS of communication for people with disabilities; INTELLIGIBILITY of speech; PHONETICS; ORAL communication; VOCABULARY education; PRE-tests &; post-tests; ACHIEVEMENT tests; COMMUNICATION; FACILITATED communication; LITERACY; PEOPLE with intellectual disabilities; HEALTH outcome assessment; RESEARCH funding
- Publication
American Journal of Speech-Language Pathology, 2017, Vol 26, Issue 2, p397
- ISSN
1058-0360
- Publication type
Article
- DOI
10.1044/2016_AJSLP-15-0047