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01.07.2020 | Mobile & Wireless Health

Usability of an Intelligent Virtual Assistant for Promoting Behavior Change and Self-Care in Older People with Type 2 Diabetes

verfasst von: João Balsa, Isa Félix, Ana Paula Cláudio, Maria Beatriz Carmo, Isabel Costa e Silva, Ana Guerreiro, Maria Guedes, Adriana Henriques, Mara Pereira Guerreiro

Erschienen in: Journal of Medical Systems | Ausgabe 7/2020

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Abstract

In the context of the VASelfCare project, we developed an application prototype of an intelligent anthropomorphic virtual assistant. Designed as a relational agent, the virtual assistant has the role of supporting older people with Type 2 Diabetes Mellitus (T2D) in medication adherence and lifestyle changes. Our paper has two goals: describing the essentials of this prototype, and reporting on usability evaluation. We describe the general architecture of the prototype, including the graphical component, and focus on its main feature: the incorporation, in the way the dialogue flows, of Behavior Change Techniques, identified through a theoretical framework, the Behaviour Change Wheel. Usability was experimentally evaluated in field tests in a purposive sample of 20 participants (11 older adults with T2D and 9 experts). The Portuguese version of the System Usability Scale was employed, supplemented with qualitative data from open questions, diaries, digital notes and telephone follow-ups. The aggregated mean SUS score was 73,75 (SD 13,31), which corresponds to a borderline rating of excellent. Textual data were content analyzed and will be prioritized to further improve usability.

https://www.daz3d.com

https://unity.com/

https://harposoftware.com

Administração Regional de Saúde de Lisboa e Vale do Tejo (Regional Health Administration of Lisbon and Tagus Valley)

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Titel: Usability of an Intelligent Virtual Assistant for Promoting Behavior Change and Self-Care in Older People with Type 2 Diabetes
verfasst von: João Balsa
Isa Félix
Ana Paula Cláudio
Maria Beatriz Carmo
Isabel Costa e Silva
Ana Guerreiro
Maria Guedes
Adriana Henriques
Mara Pereira Guerreiro
Publikationsdatum: 01.07.2020
Verlag: Springer US
Erschienen in: Journal of Medical Systems / Ausgabe 7/2020
Print ISSN: 0148-5598
Elektronische ISSN: 1573-689X
DOI: https://doi.org/10.1007/s10916-020-01583-w

Springer Medizin

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