【摘要】 目的 探讨任务多样性对护士创造力的影响以及护士长发展型领导的调节作用。方法 采用一般资料调查表、任务多样性量表、发展型领导量表及护士创造力量表对深圳2所公立医院的全体注册护士进行问卷调查，获得275份有效问卷。结果 护士任务多样性均分为(4.03±0.70)分，任务多样性与护士创造力呈倒U型曲线关系，发展型领导在任务多样性与护士创造力的曲线关系之间存在调节作用。进一步将调节变量发展型领导按平均数加减1个标准差分为高低分组时，低发展型领导组，任务多样性曲率项显著(β=-0.25,95%CI:-0.42～-0.08),高发展型领导组，任务多样性曲率项及斜率项均不显著(β=0.12,95%CI:-0.03～0.27;β=0.14,95%CI:-0.23～0.51)。结论 任务多样性与护士创造力呈倒U型的曲线关系，发展型领导在其中具有调节作用，当护士长具有较明显的发展型领导风格时，任务多样性与创造力不再存在显著的曲线关系，即不再存在“过犹不及”效应。护理管理者应该把握好任务多样性设置及发展型领导风格对护士创造力的交互作用，既充分发挥任务多样性的积极影响，又谨慎防范“过犹不及”的情况。更多还原

【Abstract】 Objective To explore the effect of task variety on nurses′ creativity and the moderating effect of head nurses′ developmental leadership. Methods All nurses from two public hospitals in Shenzhen were investigated using a general information questionnaire, a task variety scale, an employee creativity scale and a developmental leadership scale. Finally, 275 valid sample were collected. Results The score of nurses′ task variety was 4.03±0.70, showing an inverted U-shaped curve relationship with their creativity. Head nurses′ developmental leadership played a moderating role between nurses′ task variety and their creativity. When the moderating variable developmental leader was divided into high and low scores by adding or subtracting one standard deviation from the mean, the low developmental leadership group had a significant task diversity curvature term(β=-0.25,95%CI:-0.42～-0.08). In the high-development leadership group, the curvature term and slope term of task diversity were not significant(β=0.12, 95%CI:-0.03～0.27; β=0.14, 95% CI:-0.23～0.51). ConclusionTask diversity and nurses’ creativity have an inverted U-shaped curve relationship, and developmental leadership has a moderating role in it. When the head nurse has a more obvious developmental leadership style, there is no longer a significant curve relationship between task diversity and creativity, there is no longer a "too much" effect. Head nurses should be well aware of the interaction between the task variety setting and developmental leadership style on nurses′ creativity, so as to make good use of the positive effect of task variety and avoid going too far is as bad as not going far enough.更多还原