![Sample our Sports and Leisure journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/5949/TOC-Subject-Sample-2021-Sports-Leisure.jpg"})
Abstract
Four experiments were performed to investigate optimum methods for presenting cautionary-warning information. In each experiment multiple compensatory tracking constituted a primary task, while response to various cautionary-warning signals constituted a collateral task. Experiment I investigated the effects of a centrally located master signal on response to peripherally located cautionary indicators. Experiments II and III compared the effectiveness of various types of visual, auditory and combined visual-auditory master cautionary-warning signals under various levels of task complexity. In Experiment IV, the design of lonsed, legend cautionary-warning indicators was investigated. The major results of the four experiments indicated that when multiple cautionary-warning signals are presented peripherally : (1) the use of a master signal reduces response time and the number of signals missed, (2) auditory master signals are superior to visual, the use of a combined visual-auditory master produces the fewest missed signals, (4) a two-tone auditory master is superior to a one-tone, (5) for illuminated legend signals, a dark legend on an illuminated background is superior to an illuminated legend on a dark background, and (6) for the former type a letter height of ¼ in. is superior to one of ⅛ in. (height to width ratio 5 : 3) but is not significantly better than one of ⅜ in.