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Eye-Based Construct Measurement and Its Validity: A Systematic Review

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Abstract

Objective eye movement data have the potential to measure users’ states instantly and in real time, providing a basis for timely intervention and personalized adaptation. Despite the broad applicability of eye-based construct measurement, research on its development and validation remains limited. Following the preferred reporting items for systematic reviews and meta-analyses guidelines, this review analyzes 127 studies that investigate the use of eye-tracking metrics to measure abstract constructs and the corresponding validity evidence. The findings reveal that eye-tracking metrics can measure a wide variety of constructs. Drawing on validity evidence commonly employed in psychometric-based construct measurement, this study synthesizes and summarizes validity evidence applicable to eye-based construct measurement. To illustrate the application of eye-tracking metrics and their supporting evidence, this article uses the example of detecting a vehicle driver’s cognitive load, offering guidance for future studies and practical applications. © 2025 IGI Global. All rights reserved.
Original languageEnglish
Number of pages45
JournalJournal of Database Management
Volume36
Issue number1
DOIs
Publication statusPublished - Dec 2025

Funding

This research is partially supported by the Hong Kong Research Grants Council and City University of Hong Kong [Project No. CityU 11509223/9043616], the Hong Kong Research Grants Council and City University of Hong Kong [Project No. CityU 11504417/9042571], and City University of Hong Kong [Project 7008133], the Engineering Technology Research Center for Ordinary Universities in Guangdong Province (No.2024GCZX005), and the Research Project on Student Mental Health by the National Center for Mental Health, China (XS25B026). Open Access made possible with partial support from the Open Access Publishing Fund of the City University of Hong Kong.

Research Keywords

  • Blinks
  • Construct Measurement
  • Eye Tracker
  • Fixations
  • Pupil Diameter
  • Response Process
  • Saccades
  • Validity Evidence

Publisher's Copyright Statement

  • This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

RGC Funding Information

  • RGC-funded

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