本科实习护生压力知觉与专业承诺的关系：生涯适应力和心理弹性的链式中介作用

目的：探讨生涯适应力和心理弹性在本科实习护生压力知觉与专业承诺之间的链式中介作用。方法：选取温州医科大学护理学院和仁济学院2018 级的850 名本科实习护生进行问卷星在线调查。采用压力知觉量表、生涯适应力量表、心理弹性量表和专业承诺量表对其进行测评并分析结果。结果：相关分析发现，除压力知觉与生涯适应力的生涯控制维度相关不显著之外，压力知觉、生涯适应各维度、心理弹性各维度以及专业承诺各维度两两之间均呈显著正相关（r =0.162～0.865，P ＜0.001）；中介效应分析发现，生涯适应力和心理弹性在压力知觉与专业承诺之间起到链式中介作用，链式中介效应为0.070，95%CI =0.038～0.108，效应量为36.24%。结论：压力知觉能够在一定程度上促进本科实习护生的专业承诺，提升生涯适应力和心理弹性是增强学生专业承诺的有效途径。

The relationship between perceived stress and professional commitment of nursing undergraduates:the chain mediation effect of career adaptability and psychological resilience

Objective: To explore the intermediary effect of career adaptability and psychological resilience between perceived stress and professional commitment of nursing college students. Methods: A total of 850 undergraduate intern nursing students of Year 2018 from School of Nursing and Renji College, Wenzhou Medical University were selected for questionnaire via www.wjx.com. The Perceived Stress Scale, Career Adaptability Scale, Chinese version of Connor and Davidson’s Resilience Scale, and Professional Commitment Scale were used to measure and analyze the results. Results: Correlation analyses revealed significantly positive correlations between perceived stress, dimensions of career adaptability, dimensions of psychological resilience, and dimensions of professional commitment (r=0.162 0.865, P<0.001), except for the correlation between perceived stress and the career control dimension of career adaptability, which was not significant. Mediating effect analysis indicated that career adaptability and psychological resilience played a chain mediating role between perceived stress and professional commitment, with a chain mediating effect of 0.070, 95%CI=0.038-0.108 and an effect size of 36.24%. Conclusion: The perception of stress could promote the professional commitment of nursing college students to a certain extent. Improving career adaptability and resilience can enhance their professional commitment.