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.

IMPLICATIONS FOR REHABILITATION

• The Iranian version of the QUEST2.0 (IR-QUEST2.0) is an appropriate validity and reliability for measuring satisfaction with assistive technology among wheelchair users.

• Not only does the IR-QUEST2.0 can help identify the contributing factors of dissatisfaction among wheelchair users, it facilitates the quality improvement processes of AT devices as a guidance which ultimately meet or enhance customer satisfaction.

Keywords:

• QUEST2.0
• validity
• reliability
• assistive technology
• wheelchair users

Acknowledgments

The authors would like to sincerely thank the staff andmanagement of the Behbahan Faculty of Medical Sciencesfor their cooperation and financial assistance in this study and for the vital information they provided. Also, we sincerely thank the main author of the QUEST2.0 questionnaire Mr. Dr. Louise Demers. The authors declare that there was no conflict of interest.

Ethics approval and consent to participate

All subjects signed informed consent forms before the commencement of the study. The ethical approval code of this research is IR.BHN.REC.1395.5 from Behbahan Faculty of Medical Sciences.

Disclosure statement

The authors declare that they have no conflict of interests.

Additional information

Funding

This work was supported by the Behbahan Faculty of Medical Sciences for financial support via contract number CA9506.