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Purpose: Lifeguard surveillance is critical to any water safety program. This study determined the rates of detection of a 'drowning' individual by beach lifeguards, and whether scanning patterns differed between groups of lifeguards (experienced/less experienced, male/females, surf/non-surf). It was hypothesized that (1) Experienced lifeguards would perform better and produce less fixations of longer duration than inexperienced; (2) A greater detection rate would be seen in a 'biased' compared to a 'non-biased' condition; (3) There would be no differences between the surf compared to non-surf lifeguards, and male compared to female lifeguards with regard to scanning patterns or detection rates. Method: A mobile eye tracker was worn by each lifeguard (n = 69, 52 males, 17 females) as they watched 12 min of animated beach footage projected onto a screen in two conditions: a. 'Non-biased' (uniform scene). b. 'Biased' (uniform scene with presumed 'rip' on right side of screen). The lifeguards were informed that at any point during the 12 min a person may or may not disappear and to highlight if and where, a person disappeared. Unknown to the participants, a person always disappeared after 10 min at the same position within, but not between, conditions. Data were analysed using anova, t-tests and binary logistic regression. Results: Experienced lifeguards were five times (p Language: en |
