Psychological Safety and Work Design as Mediators of Supervisors' Dark Triad Traits Impact on Nurses' Task Performance.

Objectives: This study investigates how nurse supervisors' Dark Triad personality traits (Machiavellianism, narcissism, psychopathy) influence nurses' task performance, mediated by perceptions of enriched work design (autonomy, task variety, social support, safe work conditions, feedback quality) and psychological safety.

Methods: A multisource approach was used to collect data from 256 manager-nurse dyads across various healthcare settings. Nurses completed surveys assessing their work design and psychological safety.