研究生工作时间压力与心理健康的关系:睡眠质量的中介效应和心理灵活性的调节效应

Relationship between work-related time pressure and mental health among postgraduates:Mediating role of sleep quality and moderating role of psychological flexibility

目的:探讨工作时间压力与研究生心理健康的关系,并考量睡眠质量和心理灵活性在其中的作用。方法:采用工作时间压力量表、一般健康问卷(GHQ20)、匹兹堡睡眠质量指数量表(PSQI)、认知融合问卷(CFQ)和接纳与行动问卷(AAQ-II)对364名研究生进行调查,使用非参数百分位Bootstrap法进行中介效应和调节效应分析。结果:工作时间压力与心理健康评分呈正相关(r=0.411,P<0.001);睡眠质量在工作时间压力与心理健康评分间起部分中介作用,中介效应占总效应的38.48%;心理灵活性(认知融合和经验性回避)能够调节中介效应,其中认知融合对中介模型后半路径和直接路径起到调节作用,经验性回避对中介模型的后半路径存在调节作用。结论:工作时间压力对研究生心理健康有显著负面影响,睡眠质量在二者关系中起部分中介作用,且受到心理灵活性(认知融合和经验性回避)的调节。

Objective:To explore the relationship between work-related time pressure and mental health among postgraduates,and to examine the effect of sleep quality and psychological flexibility on this relationship.Methods:Work-related Time Stress Scale,General Health Questionnaire(GHQ20),Pittsburgh Sleep Quality Index Scale(PSQI),Cognitive Fusion Questionnaire(CFQ)and Acceptance and Action Questionnaire(AAQ-II)were used to survey 364postgraduates.Non-parametric percentile Bootstrap method was used to analyze the mediating effect and moderating effect.Results:There was a positive correlation between time pressure and mental health scores(r=0.411,P<0.001).Sleep quality played an incompletely intermediary role in the relationship between work-related time pressure and mental health scores,with the mediating effect accounted for 38.48%of the total effect.Psychological flexibility including cognitive fusion and experiential avoidance could regulate the mediating effect of sleep quality,in which cognitive fusion regulated the latter half pathway and the direct pathway of the mediating model,and experiential avoidance regulated the latter half pathway of the mediating model.Conclusion:Work-related time pressure has a significantly negative effect on graduate students'mental health,and sleep quality plays a partially mediating role in the relationship,which is moderated by psychological flexibility including cognitive fusion and experiential avoidance.