Investigating Hybrid Search with Eye-Tracking: A Replication of Drew, Boettcher, and Wolfe (2017)

This is a replication of Drew, T., Boettcher, S. E., & Wolfe, J. M. (2017). One visual search, many memory searches: An eye-tracking investigation of hybrid search. Journal of Vision, 17(11), 5-5. This study investigates how three factors affect performance of visual search: (1) memory set size: the number of targets the participant must memorize and then search for; (2) visual set size: the number of distractors (not memorized) and targets on the screen; and (3) target presence. By measuring response times and eye-movement patterns, the study tests the hypothesis that observers make a single search through the visual image in a hybrid search. A hybrid search occurs when an observer is searching for one of a number of possible targets that they hold in memory. We plan to run the same analyses as Drew et al. regarding behavioral results, eye-tracking results, and FVF analysis.