MODERATING EFFECTS OF SHIFT SCHEDULES ON THE RELATIONSHIP BETWEEN CIRCADIAN RHYTHM AND JOB SATISFACTION
DOI:
https://doi.org/10.35120/sciencej0401247vKeywords:
circadian rhythm, job satisfaction, shift work, chronotype, MEQAbstract
This study explores the relationship between circadian rhythm and job satisfaction among shift workers, emphasizing the moderating role of shift type (fixed vs. rotating shifts). A sample of 258 employees, categorized by their circadian preferences as morning or evening types, participated in self-reported surveys conducted during working hours to ensure anonymity and voluntary participation. Regression analyses were used to assess the influence of circadian rhythm on job satisfaction across various shift schedules. The findings reveal a significant link between circadian rhythm and job satisfaction, with circadian preferences emerging as a strong predictor of job satisfaction levels. Morning-oriented workers assigned to fixed morning shifts reported higher job satisfaction (β = 0.550, p < 0.001) than those with misaligned shifts. In contrast, evening-oriented workers on morning shifts displayed lower levels of job satisfaction. These results underscore the importance of aligning shift schedules with workers' natural circadian rhythms to promote well-being. Further moderation analysis indicated that the effect of circadian rhythm on job satisfaction was more pronounced for workers on fixed shifts (β = 0.135, p = 0.000) than for those on rotating shifts (β = 0.046, p = 0.021), with a significant z-score of -2.852, further confirming the moderating influence of shift type. This highlights the critical role of shift type in shaping the relationship between circadian rhythm and job satisfaction. Theoretical significance lies in expanding our understanding of how circadian rhythms influence job satisfaction across different shift patterns. These insights are particularly valuable to the field of occupational psychology, as they suggest that workers with misaligned circadian rhythms are more likely to experience lower job satisfaction compared to those working fixed daytime shifts. The findings of this study offer practical implications for work organization, occupational safety planning, and the education of shift workers. They also serve as a resource for selecting and recruiting employees for various shift schedules, aiming to enhance both their well-being and job satisfaction.
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