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Fariba Kiani, Mohammad Reza Khodabakhsh,
Volume 4, Issue 4 (Journal of Ergonomics 2017)
Abstract

Introduction: Studies have shown that one of the factors affecting occupational injuries is employeesawareness of work situation. Therefore, it is important to identify factors affecting situational awareness. The aim of this study was to investigate the role of fatigue and cognitive failures in predicting work situation awareness among employees.

Methods: This study was a cross-sectional study with a descriptive-correlational design. The sample consisted of 154 employees of the Tehran Pars Khodro Company in 2015, who was selected by stratified random sampling method and responded to questionnaires of fatigue from Chalder et al. (1993), cognitive failures from Broadbent et al. (1982) and work situation awareness of Sneddon et al. (2006). Data were analyzed using Pearson correlation coefficient and stepwise regression analysis.

Results: The results showed that there were significant relationships between fatigue, cognitive failures and work situation awareness (P < 0.01). Also, fatigue and cognitive failures predicted almost 14% and 25% of the variance of work situation awareness among employees, respectively (P < 0.05).

Conclusions: The reduction of employeescognitive and emotional capacity could reduce their awareness of work situation.


Fariba Kiani, Tayebe Rahimi Pordanjani, Ali Mohamadzadeh Ebrahimi,
Volume 6, Issue 1 (Journal of Ergonomics 2018)
Abstract

Background: The majority of research have led to interventions such as stress management design and have neglected the role of psychosocial factors in occupational stress. The aim of current research was to the relationship between occupational stress and health consequences among the workers in regards with the perceived organizational support.  
Methods: 211 individuals of Isfahan Steel Company were selected according to the stratified random sampling method and completed questionnaires about demography characteristics, Occupational stress, incident reporting rate and perceived organizational support. The collected data were analyzed by descriptive index and multiple regression analysis using SPSS18.
Results: Results showed that there were significant relationships among perceived organizational support, Occupational stress and incident reporting rate (P<0.05).  Also, hierarchy regression analysis showed that the relationship between Occupational stress and incident reporting rate was partially mediated by perceived organizational support (P<0.05).
Conclusion: The results of this study indicate that perceived organizational support can modify the relationship between occupational stress and involvement in work accidents, and as a result, employees are less involved in risk behaviors and accidents are less caused by occupational stress.


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