The Dark Triad and Health Behaviours: It’s all about the Future

Abstract

This chapter introduces the notion of personality disorders and focuses on defining and profiling dark personalities. Theory: The Dark Triad Model, composed of narcissism, Machiavellianism, and psychopathy, is introduced, and each personality is described and defined. The association between these three dark personalities and other personality models is presented. The origins of dark personalities are addressed, and the causes, developmental factors, gender differences, and their prevalence in society and the workplace are introduced. Practice: The practical section of the chapter offers a workplace competency profile of the three dark personalities. This Dark Triad Workplace Competency Profile provides information on how candidates presenting dark personalities score on 50 competencies used for employee selection and promotion. The profile includes most of the competencies used by I/O psychologists and HR professionals for different positions, including management positions.