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  4. Application of the Taiwanese Version of Quebec User Evaluation of Satisfaction with Assistive Technology to People Using Wheeled Mobility Devices
 
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Application of the Taiwanese Version of Quebec User Evaluation of Satisfaction with Assistive Technology to People Using Wheeled Mobility Devices

Date Issued
2007
Date
2007
Author(s)
Chen, Wan-Yin
DOI
zh-TW
URI
http://ntur.lib.ntu.edu.tw//handle/246246/55398
Abstract
Outcome measures of assistive technology have been increasing emphasized by related professions, and considered as an important basis of assistive technology service. Moreover, subjective perception such as user/consumer satisfaction is the critical part of assistive technology outcome measurement. The Taiwanese version of Quebec User Evaluation of Satisfaction with Assistive Technology(QUEST-T)was hence developed under the trend of client-centered approach. QUEST-T is one of the few standardized instruments specific to measure satisfaction with the broad range of assistive technology devices(ATD)in Taiwan. However, it is questioned that different types of ATD might be with different considerations about satisfaction; the applicability of QUEST-T for measuring specific type of ATD still needs to be investigated. In Taiwan, wheeled mobility devices(WMD)is the type of ATD used with largest proportion of people with disabilities. So it is necessary to evaluate user satisfaction with WMD. The purpose of the current study is to examine the psychometric properties of QUEST-T including internal consistency, test-retest reliability, construct validity, and its applicability for people using WMD including manual wheelchair, power wheelchair and scooter. Fifty-six subjects were recruited from two centers of assistive technology and two disability organizations in Taipei. Among them, thirty-three participants were re-administered QUEST-T in a week by the same interviewer (an occupational therapist) for exploring the test-retest reliability. The results showed that the internal consistency of the device subscale, service subscale, and personal attitude toward ATD use subscale is acceptable (Cronbach’s α. .84, .80, .81, respectively). These subscales also achieved good test-retest reliability (ICC .85, .83, .88, respectively). For item level, the test-retest stability of items with weighted Kappa ranged from .37 to .75. The findings are consistent with previous study of QUEST-T. However, exploratory factor analysis in this study didn’t agree the construct of the QUEST-T with three dimensions due to the small sample size, and further study will be needed. Furthermore, subjects were divided into three groups: high, middle and low satisfaction by QUEST-T total scores. Kruskal-Wallis test was used to compare groups’ satisfaction differences in item performance, and then Mann-Whitney U test with Bonferroni adjustment was used to discriminate which two groups are significantly different in satisfaction. The result revealed that the QUEST-T is sensitive to identify high and low satisfaction groups. The results of this study confirm the psychometric properties and applicability of QUEST-T in people using WMD. Some special considerations about WMD usage in Taiwan were proposed, too. People using WMD in Taiwan addressed safety, durability and repair service of their WMD usage. Nevertheless, the three dimensional construct of the QUEST-T wasn’t confirmed in this study due to small sample size, and still required to be investigated. The test-retest reliability of the service subscale is weaker than the other subscales. It suggests that wording of the QUEST-T items could be revised in the future, and using subscales simply for assessing satisfaction should be with caution.
Subjects
結果評量
滿意度
輪椅類輔具
心理計量特性
outcome measurement
satisfaction
wheeled mobility devices
psychometric properties
Type
text
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ntu-96-R93429005-1.pdf

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