2016 Volume 92 Issue 3-4 Pages 33-41
In this study, the effectiveness of two kinds of existing safety activity for inexperienced workers was investigated experimentally from the view point of performance of risk perception and from self-evaluation of risk perception. Thirty-four workers participated in the experiment and were divided into a tablet-based safety activity group and a self-directed safety activity group. They took a risk-prediction test and evaluated their usual risk perception at work before and after each safety activity. Results indicated that in a tablet-based safety activity group, performance of the risk-prediction test increased and self-evaluation of risk perception became safer after the safety activity, suggesting that such activity may improve worker safety. In a self-directed safety activity group, while performance of the risk-prediction test didn’t increase, the confidence in answering the risk-prediction test did, suggesting that this group may have falsely thought that they could perceive hazards that they really couldn’t. Although a safety activity can be changed to the situation of each work site, these results showed that some kind of safety activity may have a negative influence for inexperienced workers in a dangerous way Therefore, contents of a safety activity should be selected after considering testers’experience.