2013 Volume 9 Issue 1 Pages 57-68
With the installation of automated safety signaling and other systems, human error in non-normal or emergency situations has become more apparent. A psychological aptitude test was, therefore, developed to assess employee performance in these situations. Three reaction modes (color, shape, and sound) each with three stimuli were designed. One of the above nine stimuli is presented and the testee is required to push the button corresponding to the stimulus as fast and accurately as possible. If the testee's reaction is slow, a feedback signal of the delay is given to impose additional stress on the testee. Criterion-related validity is demonstrated by significant correlation coefficients between test scores and scores of performance in non-normal or emergency situations estimated by simulator trainers, superiors, and drivers themselves. Effective indicators for screening are also identified through analysis of variance, distribution, and correlation of indicators.
