Effectiveness of Stress Management Training on Mental Health, Job Satisfaction and Quality of Sleep of Day Work and Shift Work Employees of Tabriz Petrochemical Company

This study examines the effectiveness of stress management training on the mental health, job satisfaction, and quality of sleep of Tabriz Petrochemical Company staff. For this purpose, out of the statistical population (300 male workers of Tabriz Petrochemical Company), who completed the General Health Questionnaire (GHQ-28), Job Satisfaction Inventory (JDI) and Sleep Quality Inventory (PSQI), 90 subjects were selected according to the Quasi-experimental research design (30 individuals from each working group, i.e., clerical daily staff, operational daily staff, and shift work staff, whose scores in two or all questionnaires were out of the cut-off range). The subjects were randomly divided into the experimental and control groups. Intervention (stress management training) was conducted for the experimental group (10 sessions of 90-minute classes, a total of 30 sessions for three groups). The data were analyzed through descriptive and inferential statistics, and the results were obtained through one-way variance and covariance analysis. The results indicated that stress management training increased the mental health, job satisfaction, and sleep quality of Tabriz Petrochemical Company staff significantly (P