A Questionnaire for the Evaluation of Physical Assistive Devices (QUEAD) : testing usability and acceptance in physical human-robot interaction

Authors: Schmidtler, Jonas; Bengler, Klaus; Dimeas, Fotios; Campeau-Lecours, Alexandre
Abstract: Many novel physical assistance devices are beginning to incorporate intelligent robotic systems and mechatronic components. In terms of a human-centered design it is crucial to assess the perceived subjective usability and acceptance of these systems. A questionnaire was thus designed to evaluate novel physically assisting devices in order to support developers in their design decisions as well as users during individualizing of their assistive devices. Two studies (m = 9, n2 = 21), using two different devices, were conducted to analyze objectivity, reliability, and validity. The results show an overall high internal consistency (Cronbach's α > 0.8), which indicates reliability and applicability of the QUEAD. Criterion validity was tested applying correlations with established objective measures for efficiency (time to task completion), effectivity (errors and collisions), and commitment (mean force). Construct validity was applied using a proposed model and correlations to verify convergence. The results show that the QUEAD is able to assess perceived usability and acceptance.
Document Type: Article dans une conférence
Issue Date: 1 December 2017
Open Access Date: 13 November 2018
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/32327
This document was published in: IEEE International Conference on Systems, Man, and Cybernetics, 876-881 (2017)
https://doi.org/10.1109/SMC.2017.8122720
IEEE
Alternative version: 10.1109/SMC.2017.8122720
Collection:Autres articles publiés

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