Scanpath regularity as an index of reading comprehension

Purpose
Recent research on the potential of using eye-tracking to measure reading comprehension ability suggests that the relationship between standard eye-tracking measures and reading comprehension is influenced by differences in task demands between comprehension assessments. We compared standard eye-tracking measures and scanpath regularity as predictors of reading comprehension scores.

Method
We used a dataset in which 79 participants (mean age: 22 years, 82% females, 76% monolingual English speakers) were administered three widely-used reading comprehension assessments with varying task demands while their eye movements were monitored: the York Assessment of Reading for Comprehension; (YARC), the Gray Oral Reading Test; (GORT-5), and the sentence comprehension subtest of the Wide Range Achievement Test; (WRAT-4).

Results
Results showed that scanpath regularity measures, similarly to standard eye-tracking measures, were influenced by differences in task demands between the three tests. Nevertheless, both types of eye-tracking measures made unique contributions as predictors of comprehension and the best set of predictors included both standard eye-tracking measures and at least one scanpath measure across tests.

Conclusion
The results provide evidence that scanpaths capture differences in eye-movement patterns missed by standard eye-tracking measures. Overall, the results highlight the effect of task demands on eye-movement behavior and suggest that reading goals and task demands need to be considered when interpreting eye-tracking data.

© 2023 The Author(s). Published with license by Taylor & Francis Group, LLC.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.