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A Mobile Patient-Reported Outcome Measure App With Talking Touchscreen: Usability Assessment
Marlies Welbie1, Harriet Wittink1, Marjan J Westerman2
1Research Group Lifestyle and Health, Research Center Healthy and Sustainable Living, Utrecht University of Applied Sciences, Utrecht, Netherlands.
JMIR Formative Research
|October 2, 2019
Summary
The Dutch Talking Touch Screen Questionnaire (DTTSQ) app requires usability improvements for effectiveness before release, despite high user satisfaction and efficiency. Inclusive testing highlighted navigation and input issues for less experienced users.
Area of Science:
- Mobile health (mHealth) application development
- Human-computer interaction in healthcare
Background:
- A mobile health (mHealth) app, the Dutch Talking Touch Screen Questionnaire (DTTSQ), was developed in the Netherlands.
- The DTTSQ aims to enable Dutch physical therapy patients to autonomously complete health questionnaires, irrespective of literacy or digital skills.
Purpose of the Study:
- To evaluate the usability (effectiveness, efficiency, satisfaction) of the DTTSQ prototype.
- To assess usability among Dutch physical therapy patients with varying mobile technology experience.
Main Methods:
- Utilized the qualitative Three-Step Test-Interview method with think-aloud and retrospective probing.
- Included 24 physical therapy patients.
- Analyzed interview data via thematic content analysis, focusing on accuracy, completeness, time, and satisfaction.
Main Results:
- All participants reported high satisfaction with the DTTSQ's ease of use.
- Less experienced users encountered more problems; inexperienced users averaged 3 problems each.
- Four of 13 identified problems require pre-release attention due to potential negative impact on future usage.
Conclusions:
- The DTTSQ's usability, specifically effectiveness, needs enhancement before release.
- Improvements should focus on navigation, answer input methods, and error correction.
- Inclusive usability testing with diverse user groups is crucial for effective and accessible mHealth design.
