Regressions re-visited: a new definition for the visual display paradigm

Authors:
James A. Renshaw;Janet E. Finlay;David Tyfa;Robert D. Ward
Affiliations:
Leeds Metropolitan University, Leeds, UK;Leeds Metropolitan University, Leeds, UK;University of Huddersfield, Queensgate, UK;University of Huddersfield, Queensgate, UK
Venue:
CHI '04 Extended Abstracts on Human Factors in Computing Systems
Year:
2004

Citing 2
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Physiological computing

CHI '02 Extended Abstracts on Human Factors in Computing Systems
Eye Tracking Methodology: Theory and Practice

Eye Tracking Methodology: Theory and Practice

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Abstract

We revisit the definition of regressions in eye tracking, having found existing definitions, formulated within a reading paradigm, unsuitable for visual display assessment. The new definition is tested using eye movement data recorded during a usability evaluation of two series of graph designs. The new definition gave a stronger result in the usability assessment than was obtained using the previous measure, and gave a result consistent with other eye movement usability metrics derived for the two series of graph designs. The newly defined measure is easily computed and is sensitive enough to reveal a correlation between improved performance and a decrease in regressions.