routine theoretical knowledge training and clinical practice training.

Establishment of online training groups, Establishment of stress reduction workshops and peer support groups, Organization of recreational activities and games for groups, ntroducing the concept, the program's curriculum, and process organization, Cognitive restructuring training, Relaxation training, Setting up virtual stressful situations and conducting stress resilience exercises, Self-reinforcement and consolidation, Applying competencies to solve practical problems, Recall and consolidation of course content

The intervention group received the SIT program for 12 weeks. From 1st-2nd weeks, participants were admitted to an online training group set up via DingTalk, attending an offline stress reduction workshop were grouped into groups of 5-6, with games and small activities to promote group bonding. Psychiatric-psychological nurse specialist introduced the participants to the concept of SIT, the curriculum, and asked them to describe their initial knowledge and understanding of SIT. In addition, through cognitive restructuring training, the participants were made to review their work experience, understand the work stress and psychological pain they faced, and correctly recognize the role of cognition and emotion in causing and maintaining stress. From 3rd-6th weeks, participants were portrayed and discussed through videos and images, exploring personal, organizational and environmental stressors for new psychiatric nurses. Psychiatrists led relaxation exercises (e.g. positive thinking, med

Job stress scale for newly-graduated nurses (JSSNGN) is used to measure the level of occupational stress among new nurses. The scale consists of 4 dimensions and 24 items, including tasks in general care (9 items), tasks in critical care (4 items), interpersonal relationships (5 items), and leadership and management (6 items), and is based on a Likert's 5-point scale, ranging from "not stressful at all" to "extremely stressful", with Cronbach's α=0.93. JSSNGN was used to measure the level of occupational stress of new psychiatric nurses in this study. The scale has a total score range of 24 to 120, with higher scores representing greater occupational stress.

Simplified coping style questionnaire (SCSQ) is designed to measure an individual's coping style in the face of a stressful event. Two subscales are active coping (problem-focused, SCSQ-A) and passive coping (emotion-focused, SCSQ-P) with items 1to12 for active coping strategies (problem-focused, SCSQ-A) and items 13 to 20 for passive coping strategies (emotion-focused, SCSQ-P). Each item uses a 4-point Likert's scale ranging from 0 to 3, from "not used" to "use frequently", with Cronbach's α=0.80 and correlations of test-retest reliability of 0.89. SCSQ was used to measure the coping styles (SCSQ-A and SCSQ-P respectively) of new psychiatric nurses when faced with occupational stress in this study, with higher scores indicating more frequent use of the coping style.