Page 124 - THE DUTCH TALKING TOUCH SCREEN QUESTIONNAIRE

Chapter 4
were completing the DTTSQ thinking out loud. This step was aimed at collecting observational data regarding the usability of the DTTSQ. The data collected consisted of two kinds: 1. observations of participant’s behavior and 2. think-aloud data. The data was recorded on videotapes as well as audiotapes. Additionally, the researchers took real time notes for use during the following steps of the interviews as well as for later analysis. The researchers wrote their notes down on hardcopies of print screens of the Dutch Talking Touch Screen Questionnaire. Researchers IT and JS noted problems with operating the tablet computer including using the touchscreen, navigating through the questionnaire, understanding the task given in each screen, selecting response items and using the correction function. They also wrote down when the stop button was used. The researchers did not interfere in the completion process by asking any questions or providing help.
Step 2
Researcher IT conducted an in-depth interview after the participant finished completing the DTTSQ. Data collection during this step was exclusively focused on filling possible gaps and checking the observational data collected during step 1.
Step 3
During step 3 of the TSTI researcher IT conducted a semi-structured interview aimed at eliciting experiences and opinions of the participant. During the interview each screen was operated in the same way the participant did during step 1 and the same answers were entered. This was done to help the participant to clearly remember all his thoughts and actions during the completion of the questionnaire. Participants were stimulated to report feelings, express opinions, preferences and recommendations. If they encountered problems in operating the DTTSQtheywereaskedwhattheythoughttheexactnatureandpossible cause of each type of problem was and how they tried to overcome the problem. Then the participants were questioned about their satisfaction regarding the ease of use of the user interface, technical operation, layout and content and overall usability of the DTTSQ. Researcher JS was allowed to ask complementary questions, if she felt it was necessary, in order to get complete and enriched data. Researcher IT finished the interview by collecting demographic data and data on self- reported experience with mobile technology (see table 4.2.1 and 4.2.2).
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