The mediating role of psychological contract breach in the relationship between illegitimate tasks and turnover intention among Chinese nurses: a cross-sectional study

This study confirms that psychological contract breach mediates the relationship between illegitimate tasks and turnover intention among nurses. Reducing psychological contract breach through interventions that decrease illegitimate tasks can effectively lower nurses' turnover intention. Specific measures include creating a supportive work environment, establishing a sound communication mechanism, and fostering a sense of professional mission.