Accepted for/Published in: JMIR Medical Informatics
Date Submitted: Jun 27, 2024
Date Accepted: Oct 6, 2024
(closed for review but you can still tweet)
Measuring is knowing - Evaluating patients’ experienced usability of and satisfaction with digital health solutions for self-management: validation of the GEMS questionnaire
ABSTRACT
Background:
The field of digital health solutions (DHS) has tremendously increased over the past years. DHS include tools for self-management, which foster individuals to take charge of their own health. Pivotal to adoption is the experienced usability of DHS by patients. However, well-known questionnaires that evaluate usability and satisfaction use complex terminology derived from human computer interaction and are therefore not well suited to assess experienced usability of patients using DHS in a home setting.
Objective:
The objective of this study is to develop, validate, and assess an instrument that measures experienced usability and satisfaction of patients using DHS in a home setting.
Methods:
The development of The ‘Experienced Usability and Satisfaction with self-monitoring in the homeSetting’ (GEMS) questionnaire followed several steps. Step I consisted of assessing the content validity, by conducting a literature review on current usability and satisfaction questionnaires, collecting statements and discussing these in an expert meeting, and translation of each statement and adjusting it to the language level of the general population. This phase resulted in a draft version of the GEMS. Step II comprised assessing its face validity by pilot testing with a patient panel of Amsterdam UMC. In step III, psychometric analysis was conducted and the GEMS was assessed for reliability.
Results:
Fourteen items were included for psychometric analysis and resulted in four reliable scales: convenience of use, perceived value, efficiency of use, and satisfaction.
Conclusions:
Overall, the GEMS questionnaire demonstrated its reliability and validity in assessing experienced usability and satisfaction of DHS in a home setting. Further refinement and validation is necessary to confirm its applicability in other patient populations in order to promote the development of a steering mechanism that can be applied at several times of implementation and can be used as benchmarking instrument.
Citation
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