Reliability and validity of the usability scale for assistive technology for computer access: a preliminary study using video-based evaluation
| Autor: | Sajay Arthanat, Livia R. Gosselin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
030506 rehabilitation
Service delivery framework Computer science Intraclass correlation Physical Therapy Sports Therapy and Rehabilitation computer.software_genre law.invention 03 medical and health sciences 0302 clinical medicine law Surveys and Questionnaires Content validity Humans Disabled Persons Reliability (statistics) Multimedia Computers business.industry Rehabilitation Reproducibility of Results Usability Self-Help Devices Inter-rater reliability Scale (social sciences) CLARITY 0305 other medical science business computer 030217 neurology & neurosurgery |
| Zdroj: | Assistive Technology. 33:350-356 |
| ISSN: | 1949-3614 1040-0435 |
| DOI: | 10.1080/10400435.2019.1661316 |
| Popis: | Objective: The focus of this research was to establish the interrater reliability and content validity of the Usability Scale for Assistive Technology-Computer Access (USAT-CA), an evaluation tool to facilitate selection of computer access AT devices for individuals with disabilities.Methods: AT providers used the USAT-CA to evaluate two clients with physical disabilities interacting with their computer. Initially, an expert cohort of six providers used a draft version of the USAT-CA and provided feedback. Subsequently, 13 AT providers used a revised version to evaluate the clients. The providers filled out a content validation questionnaire and recommended computer access solutions for each client.Results: Overall intraclass correlation coefficient (ICC) scores were 0.8 and 0.9 for the AT provider cohorts, respectively. In each domain, ICC scores ranged from 0.7 to 0.9. There was agreement among the providers on the tool's comprehensiveness, clarity, time needed, and utility. For Client 1, 16 out of 19 AT providers recommended speech recognition software in combination with selected direct selection interfaces. For Client 2, 14 out of 19 providers recommended ergonomic and workspace modifications.Conclusion: The USAT-CA was found to have good to excellent inter-rater reliability, good content validity, and consistency in recommendations to optimize client-computer interaction. |
| Databáze: | OpenAIRE |
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