Iranian translation and psychometric of the Quebec user evaluation of satisfaction with Assistive technology (QUEST2.0) on wheelchair users

Abstract

Purpose QUEST2.0 is a practical tool specifically applied to assessing the satisfaction for awide array of assistive technology in a standard manner. Therefore, this study set to translate and evaluate the validity and reliability of the Iranian version of the QUEST2.0in Persian-speaking users of manual and electronic wheelchairs in Iran. Methods The present study recruited 130 users of manual and electric wheelchairs. Psychometric properties, including; content validity and construct validity and internal consistency and test–retest reliability, were testified. Results The content validity index of the questionnaire was 92%. The internal consistency was determined to be 0.89,0.88 and 0.74, respectively, for the whole questionnaire and dimensions of the device, and services. The test-retest reliability was 0.85, 0.80, and 0.94, respectively, for the whole questionnaire and dimensions of the device and services. Factor analysis confirmed the two-factor structure of the questionnaire. In the two-factor model, 57.75% of the total variance was explained by these two factors, of which 45.8% pertained to the first factor (device) and 11.95% to the second factor (service). Conclusions The results showed that QUEST2.0 had both valid and reliable for measuring satisfaction with assistive technology among wheelchair users. The assessment will also help facilitate the quality improvement processes in using assistive technology devices.