• Journal of the Korean Society for Aviation and Aeronautics
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• v.17 no.2
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• pp.41-51
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• 2009

This study aims at determining psychological elements that influence team coordination between a captain and a first officer in a commercial airline cockpit. It also examines how these elements interact between one another in different team membership settings. It was hypothesized that mutual inclusiveness of differential status among pilots enhances psychological safety and engagement in safety improvement efforts. Survey results based on 254 airline pilots suggest that status (captain, first officer) and mutual inclusiveness (openness between team members) influence psychological safety and mutual inclusiveness moderates the relationship between status and psychological safety. The results also suggest that psychological safety is positively associated with engagement in safety improvement efforts and partially mediates the relationship between mutual inclusiveness and improvement efforts. This study provides insights into antecedents of fostering safety improvement efforts in airline crew teams in which cultural differences and professional hierarchy exist.

• East Asian Journal of Business Economics (EAJBE)
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• v.9 no.3
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• pp.57-69
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• 2021

Purpose - The purpose of this research is to test the impact of social connectedness and team psychological safety on the relationship between transformational leadership and employee performance (job performance and practiced creativity), and moderating role of usage frequency of SNS. Research design, data, and methodology - A total of 299 questionnaires, completed by Chinese employees, were analyzed using SPSS 22 and AMOS 22. For the assessment of goodness of fit of the models, TLI, CFI, RMSEA indices were used. Result -The empirical results are as follows. First, social connectedness had a mediating effect in the relationship between transformational leadership and job performance, practiced creativity. Second, team psychological safety had a mediating effect in the relationship between transformational leadership and social connectedness, job performance, practiced creativity. Finally, the moderating effect of frequency of employee SNS usage were not significant. Conclusion -This study analyzes the mediating role of employee social connectedness and team psychological safety on the relationship between transformational leadership and job performance, practiced creativity, which is helpful for the expansion of related theories and provides practical implications for effective human resource management.

• The Journal of the Korea Contents Association
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• v.21 no.3
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• pp.478-489
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• 2021

This study aimed to demonstrate the dual mediating effect of psychological safety(PS) and silence climate(SC) in the process of team leader's self-deception behavior(SD) influencing team learning(TL). We conducted a survey of 294 workers in domestic companies and analyzed the data statistically using SPSS 21 and SPSS Process Macro for hierarchical regression and bootstrapping. The results are as follows: 1. all correlation coefficients are significant showing that SD has positive correlations with SC and negative correlation with PS and TL, 2. simple mediation effects(SD-PS-TL and SD-SC-TL) are all significant, 3. the dual mediation effect of psychological safety and silence climate on the relation between team leader's self-deception behavior and team learning(SD-PS-SC-TL) is verified. This study showed that the authenticity of team leaders could be an crucial element for organizational communication and effectiveness. Finally, limitations and suggestions for future research were discussed.

• Journal of the Korea Safety Management & Science
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• v.25 no.4
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• pp.105-115
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• 2023

The purpose of this study is to identify psychological anxiety factors related to firefighters' field activities and suggest improvement measures. To investigate the actual status of psychological anxiety factors, a survey was conducted on approximately 3,500 current firefighters, and the responses of 505 people who participated in the survey were analyzed. As a research method, frequency analysis and cross-analysis were conducted according to the general characteristics of the participants to determine the actual level of psychological anxiety in each work field and the results were analyzed. As a result of the analysis, it was statistically confirmed that firefighters feel a lot of psychological burden due to legal and institutional inadequacies during dispatch, return, or field activities, and frequent friction with civil servants is also a major cause of psychological anxiety. Therefore, based on the results of this study, it is proposed to establish a permanent legal support team in each city and province, designate and operate a hospital dedicated to psychological treatment, and establish a special provision for traffic accidents during the return of fire trucks so that firefighters can concentrate on their duties without psychological anxiety. do.

• Safety and Health at Work
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• v.6 no.2
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• pp.128-133
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• 2015

Background: To investigate the relationship between musculoskeletal disorders and comorbid health problems, including depression/anxiety disorder, insomnia/sleep disorder, fatigue, and injury by accident, and to determine whether certain physical and psychological factors reduce comorbid health problems. Methods: In total, 29,711 employees were selected from respondents of the Third Korean Working Conditions Survey and categorized into two groups: Musculoskeletal Complaints or Musculoskeletal Sickness Absence. Four self-reported health indicators (overall fatigue, depression/anxiety, insomnia/sleep disorder, and injury by accident) were selected as outcomes, based on their high prevalence in Korea. We used multiple logistic regression analysis to determine the relationship between comorbid health problems, musculoskeletal complaints, and sickness absence. Results: The prevalence of musculoskeletal complaints and musculoskeletal sickness absence due to muscular pain was 32.26% and 0.59%, respectively. Compared to the reference group, depression/anxiety disorder and overall fatigue were 5.2-6.1 times more prevalent in the Musculoskeletal Complaints Group and insomnia/sleep disorder and injury by accident were 7.6-11.0 times more prevalent in the Sickness Absence Group. When adjusted for individual and work-related physical factors, prevalence of all four comorbid health problems were slightly decreased in both groups. Conclusion: Increases in overall fatigue and depression/anxiety disorder were observed in the Musculoskeletal Complaints Group, while increases in insomnia/sleep disorder and injury by accident were observed in the Sickness Absence Group. For management of musculoskeletal complaints and sickness absence in the workplace, differences in health problems between employees with musculoskeletal complaints and those with sickness absence as well as the physical and psychological risk factors should be considered.

• Journal of the Korean Society of Safety
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• v.29 no.5
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• pp.146-153
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• 2014

This study looks at the impact of psychological and physical factors of the working conditions on the health of workers depending on whether technology is used by such workers. The data used for the study is the third work environment survey. Out of 50,032 respondents, a total of 29,711 paid workers were used as analysis subjects. Although it was anticipated that the use of technology was a factor that hindered job autonomy and teamwork autonomy. However, the analysis results showed low levels of job autonomy and teamwork autonomy in the group that did not use technology. The study assumes a regression analysis model about work environment and work organizational practices of workspaces that have an impact on musculoskeletal complaints, stress symptoms and level of work satisfaction by controlling the social demographic variable that represents the level of individual sensitivity. As a result of the study, ergonomic risk had a significant effect on both groups that did or did not use technology with respect to stress symptoms, musculoskeletal complaints and level of work satisfaction. In particular, as workspace practices and work environment had an effect on the development of musculoskeletal complaints in the group that used machines, there is a need to improve such situation. The autonomous team work or level of job autonomy within the group that used technology may act as a risk factor to the health and welfare of workers. However, because it may also act as a buffer factor, there is a need for a change to reduce stress symptoms and increase the level of work satisfaction by improving autonomous team work and the level of job autonomy.

• Korea Journal of Hospital Management
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• v.25 no.1
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• pp.58-72
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• 2020

Purposes: This study aims to investigate the determinants of change-oriented organizational citizenship behavior(CO-OCB) of hospital employees and test the mediating effect of the job satisfaction and organizational commitment on the CO-OCB. Methods: Data were collected from the self-administered questionnaire survey for hospital employees of ten hospitals located in five regions, including Seoul. Out of 1,100 questionnaires which were distributed through the administrative routes, a total of 617 copies were returned(response rate 56.1%) and analyzed by frequency analysis, t-tests, correlation analysis, multiple regression, and path analysis using SPSS 21.0 and AMOS 21.0. Findings: The study results revealed that the explanatory power(56.4%) of the model was most significantly increased by the variables of psychological attributes(R²-change 33,5%). Also, the variables of self-efficacy, followed by hope, the organizational climate for innovation, the psychological safety climate, team-member exchange, and leader-member exchange were found to have positive total effects on CO-OCB, through the mediating variables of job satisfaction and organizational commitment. Practical Implications: The study results imply that, in order to improve the CO-OCB of hospital employees, the administrators have to take the integrated approach considering the various domains of factors including the psychological attributes, job characteristics, interpersonal relations, and organizational climate simultaneously.

• Korean Security Journal
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• no.18
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• pp.55-72
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• 2009

The successful performance ability of the private security of a bodyguard is evaluated as the quality of the bodyguard. However, the performance ability of a bodyguard is never decided only with his/her ability. When the educational development of a security company is continuously made, bodyguards and their team belonging to the company can obtain a good evaluation. It is also directly connected with the recognition of a company that plays the role of CP. A fundamental repetition education over safety and happiness should be conducted to avoid the lack of safety awareness under genuine recognition. Security companies should surely understand that liberation from the uneasiness for unclear future is not achieved only with the skill and ability of a bodyguard. The ability of a single bodyguard does not represent his/her team. The security of a client is maintained with a satisfying result of a team. The satisfaction result of a client should be linked to a result to improve the personal satisfaction of a bodyguard. When a security company and its CEO support an education that rightly regulates the activities of a bodyguard, the quality of a bodyguard and the satisfaction of his/her team obviously improve together. This research aims at being used as educational material that is needed for maintaining the psychological condition of a client while guarding the client. This is because the method accessing the excellent performance ability of a bodyguard needed by a client can be achieved through education.

• Safety and Health at Work
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• v.7 no.4
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• pp.326-330
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• 2016

Background: The Nordic Safety Climate Questionnaire-50 (NOSACQ-50) was developed by a team of Nordic occupational safety researchers based on safety climate and psychological theories. The aim of this study was to develop and validate the Persian version of NOSACQ-50 and assess the score of safety climate on a group of workers in a steel company in Iran. Methods: The Persian version of NOSACQ-50 was distributed among 661 employees of a steel company in Qazvin Province (Iran). Exploratory factor analysis (EFA) and confirmatory factor analysis were used to determine the dimensions of the questionnaire. The reliability of the questionnaire was assessed using Cronbach ${\alpha}$ coefficient. Pearson correlation test was applied to investigate the correlation between different dimensions. Results: The results of EFA showed that the Persian version of NOSACQ-50 consisted of six dimensions. The Cronbach ${\alpha}$ coefficient of the questionnaire was 0.94. The mean score of safety climate in all dimensions was 2.89 (standard deviation 0.60). Conclusion: The Persian version of NOSACQ-50 had a satisfactory validity for measuring safety climate in the studied Iranian population.

• Journal of the Korean Society of Marine Environment & Safety
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• v.24 no.6
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• pp.686-693
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• 2018

After the Sewol ferry-sinking incident in 2014, the public interest in safety at sea increased. In order to save and secure the initial response time required for sea rescues, not only the rescue organization, but also the victim needs to save and maintain golden time to secure the necessary time for rescue personnel. The purpose of this study was to investigate ways to maintain the psychological stability of victims during their rescue in the case of a mass rescue operation by using the oil boom installed on board oil spill response vessels. Through buoyancy tests and the development of oil booms in sea areas, it confirmed the buoyancy of two adults weighing 70 kg each per meter of oil boom could be maintained when a lifeline was installed on the side of the oil boom, and that it was possible to keep afloat four persons weighing 70 kg each on both sides of the oil boom. It also confirmed the buoyancy for three adults weighting 70 kg each per eight meters was maintained when riding on the top of the oil boom. As a method of rescue, it was found that the fastest and most accurate way to rescue victims was a rescue boat held at the rear end of the oil boom to lead to victims. In conclusion, the rescue team could utilize the oil boom installed on board the oil spill response vessel located near the marine accident site to save and secure the initial response time required for the rescue team to arrive. The victims in distress holding onto the lifeline or riding on the top of oil boom kept afloat at sea could maintain their psychological stability until the mass rescue operation initiated.