Stress training and simulator complexity: why sometimes more is less

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. Through repeated practice under conditions similar to those in real-world settings, simulator training prepares an individual to maintain effective performance under stressful work conditions. Interfaces offering high fidelity and immersion can more closely reproduce real-world experiences and are generally believed to result in better learning outcomes. However, absolute fidelity in stress training is not critical for skills to be transferable. The present study compared the performance outcomes achieved by trainees using two different simulator types to complete a training program aimed at improving decision-making skills. The purpose of this research was to assess both the overall level of training effectiveness and to determine whether performance levels were influenced when high (160 degree curved wide screen) versus low fidelity (small cab-based flat screen) simulator types were in use. Sixty-three train drivers drove for 40 min on a simulated track on which they encountered four major high stress driving events. One year later, 42 of the original drivers returned and repeated the training scenario a second and third time. Results revealed trainees using the lower fidelity flat screen simulator made fewer errors in both years than trainees using the high fidelity curved screen simulator. The implications of these results are discussed. 1. Introduction In work environments where heavy, human operated machinery is at work, accidents are an unfortunate but often inevitable part of everyday life. An essential element, in training to respond to workplace accidents effectively, is how to train staff to cope with ill-defined problems in the face of high stress environments constrained by factors such as insufficient or unreliable information, time constraints and or conditions of threat of physical injury (Salas et al. 1999). Emergency response skills, particularly those that degrade under stress such as …