The Effects of Stress Inoculation Training Program on Occupational Stress Level, Coping Style, and Sleep Quality in New Psychiatric Nurses.

Inclusion Criteria: * obtained nurse practitioner's license; * nurses who were newly employed within the last three years and have been in their position for one month or longer; * directly interacting with patients with mental illnesses in daily work; * obtained informed consent to participate voluntarily in this study. Exclusion Criteria: * non-fresh graduates; * these taking vacations, refresher courses during the study period; * were breastfeeding or pregnant; * had attended a similar stress intervention training (e.g., Positive Thinking Stress Reduction training, etc.) within the past year; * new major non-work stressors (e.g., death of a close family member, divorce, exposure to a major natural disaster, etc.) within the last six months.