Test-retest reliability and agreement of the Satisfaction with the Assistive Technology Services (SATS) instrument in two Nordic countries
Author
Summary, in English
Purpose: The purpose of this study was to investigate test-retest reliability, agreement, internal consistency, and floor- and ceiling effects of the Danish and Finnish versions of the Satisfaction with the Assistive Technology Services (SATS) instrument among adult users of powered wheelchairs (PWCs) or powered scooters (scooters). Method: Test-retest design, two telephone interviews 7-18 days apart of 40 informants, with mean age of 67.5 (SD 13.09) years in the Danish; and 54 informants with mean age of 55.6 (SD 12.09) years in the Finnish sample. Results: The intra-class correlation coefficient varied between 0.57 and 0.93 for items in the Danish and between 0.41 and 0.93 in the Finnish sample. The percentage agreement varied between 54.2 and 79.5 for items in the Danish and between 69.2 and 81.1 in the Finnish sample, while the Cronbach's alpha values varied between 0.87 and 0.96 in the two samples. A ceiling effect was found in all items of both samples. Conclusions: This study indicates that the SATS may be reliably administered for telephone interviews among adult PWC and scooter users, and give information about aspects of the service delivery process for quality development improvement purposes. Further psychometric testing of the SATS is required.
Department/s
Publishing year
2014
Language
English
Pages
367-374
Publication/Series
Physiotherapy Theory and Practice
Volume
30
Issue
5
Full text
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Document type
Journal article
Publisher
Taylor & Francis
Topic
- Physiotherapy
Keywords
- Assistive technology
- instrument development
- intra-observer
- reliability
- powered wheelchairs
- psychometric testing
- rehabilitation
- scooters
- service delivery
Status
Published
Research group
- Active and Healthy Ageing Research Group
ISBN/ISSN/Other
- ISSN: 0959-3985