Research internship (University of Amsterdam)

During my internship at the University of Amsterdam, I contributed to the paper “The validation of online webcam-based eye-tracking: The replication of the cascade effect, the novelty preference, and the visual world paradigm” (submitted).

My contributions included:

• task design and programming
• data acquisition
• data analyses
• reporting results for both the novelty preference and the visual world paradigm parts

Authors: Ine Van der Cruyssen, Gershon Ben-Shakhar, Yoni Pertzov, Nitzan Guy, Quinn Cabooter, Lukas J. Gunschera, & Bruno Verschuere

Abstract (shortened): The many benefits of online research and the recent emergence of open-source eye tracking libraries have sparked interest in transferring time-consuming and expensive eye tracking studies from lab to web. In this study, we validate online webcam-based eye tracking by replicating three robust eye-tracking paradigms online using the participant’s webcam as eye tracker with the WebGazer.js library. We successfully replicated all three effects, though effect sizes shrank by 20–27%. We argue that studies with relatively large effects that do not require extremely high precision can be done online using webcam-based eye tracking, and we provide recommendations to improve quality.