Sources of Situation Awareness Errors in Workplace (Stress, Sleep Loss and Fatigue) in National Petrochemical Company in 2014
Volume 2, Issue 4, Autumn 2014, Pages 45-54
fariba kiani, Elham Baradaran, Mohammad Reza Khodabakhsh
Abstract Aim: It has been shown that workers who had previously been involved in a work accident had significantly lower situation awareness scores than those who had not had an accident in the workplace. In this study, we examined the role of stress, sleep loss and fatigue in predicting situation awareness among workers. Methods: The current study was a cross-sectional study. The sample consisting of 180 employees in National Petrochemical Company in 2014 was selected according to the stratified random sampling method. They responded to questionnaires about work situation awareness, work stress, sleep loss and fatigue. The data were analyzed by correlation techniques and stepwise regression. Findings: The results showed a significant internal correlation among work stress, sleep loss and fatigue, and work situation awareness. Also the results of stepwise regression analysis showed that sleep loss, fatigue and stress predicted, respectively, almost 25%, 23% and 21% of variances of work situation awareness among workers. Conclusion: The variables of stress, sleep loss and fatigue could predict work situation awareness. Therefore, these variables can be important to promoting the awareness of work situation among workers
The Role of Attitude towards Safety as a Mediator of Safety Training Effectiveness to Fatalism
Volume 1, Issue 2, Spring 2013, Pages 61-75
Fariba Kiani, Mohammad Reza Khodabakhsh, Majid Saffarinia
Abstract Aims: Fatalistic employees take serious risks because they have limited knowledge of risks and accidents, leading them to under estimate the possibility of their occurrence. This research examined the effectiveness of safety training on changing employees’ fatalism with attention to the mediating role of attitude toward safety issues. Methods: 204 employees was selected according to the stratified random sampling method in Isfahan Steel Company, divided randomly into control group (n=103) and experimental group (n=101) and the questionnaires of safety attitude and fatalism were applied as data collection instruments. The data was collected before intervention, and educational intervention was then executed in four 90-minute sessions over four days. One month after intervention, post-test was performed and the collected data was analyzed using descriptive indexes, t- and F-tests. Findings: Results show that there was a significant statistical difference in average numbers of attitude toward safety issues and fatalism before and after training intervention (p<0.01). Also, mediation analysis indicated attitude toward safety issues mediated the effect of safety trainings on fatalism (p>0.05). Therefore, safety training only by promoting workers’ safety attitudes can change the fatalistic beliefs among employees. Conclusion: By understanding relationship between fatalism and safety attitude, it should be possible to improve the training of employees, such that are less likely to attribute accidents to chance or fate.
