Drawing from the cognitive evaluation theory, the purpose of this paper is to explore the relationship between student volunteers’ narcissism, Machiavellianism and psychopathy, and commitment to university volunteer programmes through the mediating mechanisms of self-orientation and pro-social motivation. Further, it investigates the roll of servant leadership in mitigating these personality types and encouraging student volunteers to become more pro-socially motivated.,The study uses data collected via questionnaire from 156 student volunteers across Australia. Hypothesis testing was conducted using ordinary least squares regression with the path-analytic conditional process modelling (PROCESS) macro for SPSS.,The study’s analysis indicated that self-orientated motivation mediated the relationship between narcissism and normative commitment, and pro-social motivation mediated the relationship between both Machiavellianism and psychopathy, and affective commitment. Further, servant leadership was found to moderate the relationship between both Machiavellianism and psychopathy, and pro-social motivation, such that the negative relationship became weaker under a servant leader. These findings suggest that servant leaders play a significant role in encouraging “dark” personalities to see the light.,This research is the first to examine the use of the Dark Triad in a student volunteering context. It extends the cognitive evaluation theory by revealing that extrinsic (in contrast to intrinsic) motivations are “crowded out” as intrinsic (in contrast to extrinsic) motivations develop within individuals. The study also refines the social learning theory, by examining the influences of “positive” leadership attributes (servant leadership) on “darker” (Dark Triad) personalities.

中文翻译：

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“黑暗”学生志愿者：承诺，动力和领导力

本文从认知评估理论出发，旨在探讨学生志愿者的自恋，马基雅维利主义与心理疾病之间的关系，以及通过自我导向和亲社会动机的中介机制参与大学志愿者项目的承诺。此外，它还研究了仆人领导在减轻这些人格类型，鼓励学生志愿者变得更亲社会动机方面的作用。该研究使用了通过问卷调查从澳大利亚156名学生志愿者那里收集的数据。使用普通最小二乘回归和SPSS路径分析条件过程建模（PROCESS）宏进行假设检验。研究分析表明，自我导向的动机介导了自恋与规范承诺之间的关系，亲社会动机介导了马基雅维利主义和精神病与情感投入之间的关系。此外，人们发现仆人领导能够缓和马基雅维利主义和精神病之间的关系以及亲社会动机，从而使负关系在仆人领导下变得更弱。这些发现表明，仆人领导者在鼓励“黑暗”人物见光方面起着重要作用。这项研究是第一个研究在学生志愿服务中使用“黑暗三合会”的方法。它揭示了随着个人内在动机（与内在动机）的发展，外在动机（与内在动机相反）被“挤出”，从而扩展了认知评估理论。该研究还完善了社会学习理论，