New study: Retrospective Think Aloud and Eye Tracking

During the summer we have conducted a study at Tobii Technology aimed to compare the outcomes from four different retrospective think aloud (RTA) methods in a web usability study: a non cued RTA, a screen video cued RTA, a gaze plot cued RTA, and a gaze video cued RTA. Twenty-four participants were used in the […]

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The value of eye tracking in RTA

I have been writing a few post on Retrospective Think Aloud (RTA) in user research previously on this blog. RTA has proven to be especially useful in combination with eye tracking because having users watch their own eye movements while they were completing a task helps them remember what they did and describe their own […]

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Video: Eye tracking in quantitative user testing online

Today Tobii released a new interesting video clip in its Eye Track Expert TV interview series featuring Niall Bellabarba from Realeyes. Niall talks about how they use eye tracking in quantitative user testing online. Realeyes usually include at least 50 users in their eye tracking studies to reach saturation in user behavior to enable them to do quantitative analysis […]

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How many participant in an eye tracking study?

One of the most common questions I get is about how many participant should be included in an eye tracking study. Well, it is not a simple question to answer. I think it is impossible to come up with a specific number of participants that will work in all cases, but there can of course […]

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