Effects of Age and Think-Aloud Protocol on Eye-Tracking Data and Usability Measures
In this paper, we compare concurrent (CTA) and retrospective think aloud (RTA) in young, middle-age and older adults. We demonstrate that CTA leads to more eye fixations only for older adults, CTA leads to increased accuracy in young and middle-age adults, and RTA leads to increased efficiency in middle-age adults.
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