Persian Translation and Validation of the Quebec User Evaluation of Satisfaction with Assistive Technology (Quest 2.0) on Wheelchair Users
Code: G-32405
Authors: Amir Hossein DavoudianTalab, Shahla Mokaramiyan ©, Fatemeh Kamari Ghanavati ℗
Schedule: Not Scheduled!
Tag: Ergonomics
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Abstract:
Background and Aim
Introduction:Satisfaction with assistive technology (AT) is described as a precise and critical evaluation of the user about assistive devices. (QUEST2) is a practical tool specifically applied in assessing the satisfaction for a wide array of assistive technology in a standard manner. Therefore, this study set to translate and evaluate the validity and reliability of Persian version of the QUEST2 in Persian-speaking users of manual and electronic wheelchairs in Iran.
Method
Methods: Translation and evaluation of validity and reliability of the questionnaire were conducted in accordance with the international standard guidelines.The present study a total number of 130 manual wheelchair users aged 20-65 were randomly selected from October 2020 to November 2021.QUEST is used to evaluate satisfaction with AT devices by users. The initial version of the QUEST contained 24 items; however, the updated QUEST2.0, which provides more acceptable psychometric evaluation properties, has 12 items in two subscales including device features and provision service.The overall satisfaction score is measured by taking the average score of all 12 subscales. Finally, the 12-item questionnaire asks participants to mark the three most important questions. Psychometric properties including; face validity, content validity, and construct validity and also internal consistency and test–retest reliability was testified.
Results
Pearson’s correlation coefficient for each variablewas between 0.31 and 0.89, indicating a significant correlation (P0.05). Cronbach's alpha coefficient, which used to determine the internal consistency of the questionnaire, was 0.89 for the whole questionnaire, 0.88 for the device dimension, and 0.74 for the provision services, indicating a high internal consistency. The test-retest reliability of the overall test, device, and services was 0.85, 0.80, and 0.94, respectively, indicating an excellent agreement between the scores in the repeated tests. The applicability of performing factor analysis on the research sample was investigated using the Bartlett test and the Kaiser-Meyer-Olkin (KMO) sampling adequacy index. The latent factors were extracted by principal component analysis (PCA) and varimax rotation. KMO was 0.86 confirming acceptability of factor analysis. Furthermore, the Bartlett test of sphericity Chi-square was significant (P0.0001). This result, while indicating the correlation between the study variables, confirmed the application of factor analysis. Factor analysis confirmed the two-factor structure of the questionnaire. In the two-factor model, 56.9% of the total variance was explained by these two factors, of which 45.8% pertained.
Conclusion
Ir-QUEST, the localized version of QUEST 2 for Iran, is an appropriate tool for measuring the satisfaction of Iranian users with AT devices owing to its appropriate internal consistency, test-retest reliability, structural validity, and content validity. Further studies are yet needed to delineate other Ir-QUEST features including concurrent construct validity and confirmatory factor analysis. Moreover, since this study was conducted on one type of AT devices for paraplegic users, the user satisfaction with other essential.
Keywords
Quest 2.0, validity, reliability, assistive technology, wheelchair users
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