Page 146 - THE DUTCH TALKING TOUCH SCREEN QUESTIONNAIRE

Chapter 4
ABSTRACT
Background
The Turkish translation of the Dutch Talking Touch Screen Questionnaire (TTSQ) has been developed to help physical therapy patients with a Turkish background in the Netherlands to autonomously elucidate their health problems and impairments and set treatment goals, regardless of their level of health literacy.
Objective
The aim of the current study was to evaluate the usability (defined as effectiveness, efficiency and user satisfaction) of the Turkish TTSQ for physical therapy patients with a Turkish background with diverse levels of health literacy and experience in using mobile technology.
Methods
The qualitative Three-Step Test-Interview method, including both think-aloud and retrospective probing techniques, was carried out to gain insight into the usability of the Turkish TTSQ. Ten physical therapy patients participated. The interview data were analyzed using a thematic content analysis approach aimed at determining the accuracy and completeness with which participants completed the questionnaire (effectiveness), the time it took participants to complete the questionnaire (efficiency), and the extent to which the participants were satisfied with the ease of use of the questionnaire (satisfaction). The problems encountered by the participants in this study were given a severity rating which was used to provide a rough estimate of the need for additional usability improvements.
Results
No participant in this study was able to complete the questionnaire without encountering at least one usability problem. A total of 17 different kinds of problems were found. Based on their severity score, three problems which should be addressed during future development of the tool were: ‘Not using the navigation function of the photo gallery in Question 4 causing the participant to not see all presented response items’; ‘Touching the text underneath a photo in Question 4 to select an activity instead of touching the photo itself, causing the activity not to be selected’; and ‘Pushing too hard or tapping too softly on the touch screen causing the touch screen to not respond’. The
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