Authors:
Rute Bastardo
1
;
João Pavão
2
and
Nelson Pacheco Rocha
3
Affiliations:
1
UNIDCOM, Science and Technology School, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
;
2
INESC-TEC, Science and Technology School, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
;
3
IEETA-Institute of Electronics and Informatics Engineering of Aveiro, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
Keyword(s):
Usability Evaluation, Inquiry Instruments, Ambient Assisted Living, Older Adults, Scoping Review.
Abstract:
This paper reports a scoping review of the literature to identify the inquiry instruments being used to evaluate the usability of AAL solutions, which resulted in the inclusion of 35 studies. The results show that a significant number of the included studies reported the use of non-valid inquiry instruments, such as ad-hoc questionnaires. Among the studies using valid and reliable inquiry instruments, System Usability Scale (SUS) emerged as the most used one. In general, valid and reliable inquiry instruments are being used together with additional data gathering methods, to perform comprehensive usability evaluations. Moreover, in terms of the quality of the design of the included studies, it should be pointed the adequacy of the participants’ characteristics and the tasks they performed. In turn, these studies did not present evidence of the preparation and independence of the evaluators.