Page 163 - THE DUTCH TALKING TOUCH SCREEN QUESTIONNAIRE

Evoluation of the Dutch and Turkish version
precisely. Like Elif, Onur and inexperienced Eren (48y) also wanted to be able to indicate the locations of their complaints more precisely, but they suggested a function that would enable them to zoom in on a specific body part.
DISCUSSION
Principal results
Two participants, who had prior experience with using tablet computers, managed to complete the questionnaire fully without leaving any parts unanswered. No participant in this study was able to complete the questionnaire without encountering a usability problem. A total of 17 different kinds of problems were found. Three problems should be addressed during future development of the tool based on their severity score [40]: ‘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’.
No participant was distinctly satisfied or dissatisfied about the overall ease of use of the Turkish TTSQ. Positive remarks were mainly made on the user interface and the short completion time of the Turkish TTSQ. The most frequently-made recommendations were: improve accentuation of the activated response items; give a complete overview of activities to choose from in answer to Question 4; and shorten the instruction clips by limiting the information to the main issues. Two inexperienced participants felt that, regardless of what improvements might be made, it would just be too difficult for them to learn to work with the device.
Strengths and limitations
A strength of this study was the inclusion of ten members of a target population that is generally ‘hard to reach’ for researchers [42]. Researcher SH played an important role in the recruitment and data collection within this study. His Turkish background and him being a native Turkish speaker, combined with his network, status and trustworthiness as a physical therapist working in the community, may have had a positive influence on the willingness of potential candidates
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