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Combining think-aloud protocols with eye tracking technology for usability: An exploratory comparative analysis

Berkhoff, A.R. (2020) Combining think-aloud protocols with eye tracking technology for usability: An exploratory comparative analysis.

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Abstract:The present study examined different think-aloud protocols with eye tracking technology in usability testing in an exploratory and comparative way. A focused selection was made from a list of usability methods and usability techniques to deepen the understanding of think-aloud protocols and eye tracking technology. The concurrent and retrospective think-aloud protocols have been used together with a gaze-measuring (classic) eye tracker and an (cued) eye tracker with a vision bubble to create four conditions. To compare the four conditions, a review from previous research with similar usability tests had been done. From the review, six criteria have been selected by which the four conditions can be compared. The six criteria have been used with the questionnaire UMUX-lite and the instrument Rating Scale Mental Effort to do the comparative study. The results of the comparative study suggest that the retrospective think-aloud protocol which utilizes the classic eye tracker fits the criteria better than the three other conditions. Furthermore, the results suggest that concurrent and retrospective think-aloud protocols which use the cued eye tracker fit the criterion regarding the participants’ experience better than the two think-aloud protocols which use the classic eye tracker. The results also suggest that the two think-aloud protocols which use the cued eye tracker fit the criteria regarding the questionnaire UMUX-lite and the time spent on a task worse than the two think-aloud protocols which use the classic eye tracker. In conclusion, the present study can be seen as an in-depth exploration into the world of usability testing and encourages investigating think-aloud protocols and eye tracking further.
Item Type:Essay (Master)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology MSc (66604)
Link to this item:http://purl.utwente.nl/essays/82686
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