Validation of the Greek version of the device subscale of the Quebec User Evaluation of Satisfaction with Assistive Technology 2.0 (QUEST 2.0)

Abstract

The purpose of the study was to evaluate the device subscale of the QUEST 2.0 instrument and provide evidence for the validity and reliability of the Greek version. To this end, a cross-cultural adaptation was performed. Field test studies were conducted to validate the appropriateness of the final outcome. Data were drawn from a study of 115 subjects who had been administered the GR-QUEST questionnaire. Ratings related to the different items were statistically analyzed. The exploratory factor analysis with varimax rotation conducted revealed a three factors structure of the device subscale in contrast with previous studies. Our "Safe Use" subscale contains the items adjustments, safety and effectiveness of the original instrument, the "Fit to Use" subscale contains the dimensions, weight and ease of use items, and the "Endurance" subscale contains the items durability and comfort of the original questionnaire. Reliability measures (ICC=0.949, Pearson´s correlation=0.903, Cronbach´s α=0.754) yielded high values. Test-retest outcome showed great stability. Based on the results, the GR-QUEST can be considered as a valid and reliable instrument and thus it can be used to measure the satisfaction of patients with assistive devices, while it is applicable to the Greek population. Further assessment of the services subscale is needed.

A Systematic Review on Existing Measures for the Subjective Assessment of Rehabilitation and Assistive Robot Devices

“…According to Holz et al, QUEST 2.0 is a standardized satisfaction assessment tool designed for assistive technologies [ 51 ]. Moreover, it has been tested for its validity and reliability in several applications and languages [ 52 , 53 ]. Although this scale is used with assistive devices, del-Ama et al [ 48 ] used only 7 of the 12 questions incorporated in the original questionnaire in their study.…”

Calce, apoyo postural, seguridad y satisfacción de usuarios de sillas de ruedas en un Instituto de Rehabilitación de CABA. Estudio descriptivo.

“…(7,18) Esta herramienta presenta una consistencia interna muy buena (alfa Cronbach= 0,82) para todo el conjunto de ítems, (19) además presenta muy buena confiabilidad test-retest (ICC 0.82, 0.82, 0.91) y muy buena confiabilidad al comparar la versión autoadministrada con la realizada mediante entrevista (ICC 0.89, 0.76, 0.91). (18) Se encuentra validada en varias poblaciones e idiomas (20)(21)(22)(23) pero no traducida al español, por lo que los autores del presente estudio han realizado la traducción correspondiente.…”

“…De todas formas, no se han publicado hasta la actualidad otras herramientas para evaluar estas medidas de resultado. La escala de Quebec utilizada para evaluar satisfacción es una herramienta recomendada por expertos con buenas propiedades psicométricas que se encuentra validada en varias poblaciones e idiomas (20)(21)(22)(23) pero no al idioma español. Además, nuestros criterios de inclusión no tuvieron en cuenta el nivel cognitivo de los sujetos por lo cual consideramos que algunas respuestas pueden ser poco fiables.…”

User Evaluation of the MOBOT Rollator Type Robotic Mobility Assistive Device

“…The ATDPA assesses the overall user experience with AT, while QUEST 2.0 is a tool that can be used to measure satisfaction from the use of AT. In order for both scales to be used with Greek speaking elderly subjects, a formal translation and validation process preceded their use in the framework of the MOBOT rollator evaluation, as reported in [24,25].…”