The palm oil mills demand the workers perform manual material still managing activities, which results in pain complaints leading to possible disability. These pain complaints can be resolved by implementing an intervention program involving all parties. Most previous studies only investigated the program implementation, and few addressed workers' behavioral responses. Organizational culture, which may affect the correlation between organizational climate and the effectiveness of intervention programs, has never been properly studied. This study aims to determine how the interaction between technical support and effective management-worker communication on the effectiveness of the intervention program by considering the influence of organizational culture. Understanding worker acceptance of intervention programs can determine how to implement them effectively. All these research variables were analyzed simultaneously using Partial Least Squares Structural Equation Modeling (PLS-SEM) software, in which data were obtained from questionnaires given to 280 people working in 20 government-owned and private-owned palm oil mills in North Sumatra Province. The results show that technical support and effective communication affect the effective intervention program, but effective communication has a bigger effect. Organizational climate mediates the effects of technical support and effective communication on effective intervention programs. Organizational culture negatively moderates the correlation between organizational climate and effective intervention programs. The dimensions of organizational culture in palm oil mills are high power distance, high uncertainty avoidance, collectivism, masculinity, long-term orientation, and restraint.
Manual activities of workers in palm oil factories cause pain complaints that can be resolved with an ergonomic program. However, the uncertainty of the success of the ergonomic program requires active involvement from workers. This study aims to discuss the role of workers’ perceptions towards the success of the ergonomic program intervention in palm oil mills. By referring to the theory of reasoned action and technology acceptance model, acceptance of workers to ergonomics programs are influenced by perceived usefulness, perceived ease of use, and perceived trust. All these research variables were analyzed simultaneously using Partial Least Squares Structural Equation Modeling (PLS-SEM) software, in which data were obtained from questionnaires given to 280 people working in 20 palm oil mills in North Sumatra Province. The sampling method used is simple random sampling and model estimation is performed using PLS regression algorithm and resampling bootstrapping method. The result shows that perceived usefulness has the biggest effect on the success of the ergonomic program, followed by perceived trust and perceived ease of use, which has a smaller effect. This study focuses on workers’ perception that needs to be considered for facing uncertain results in implementing an ergonomic program.
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