“…A series of four large (Ns = 290-657) studies of adults examined the Dark Triad's relation to bullying (Baughman, Dearing, Giammarco, & Vernon, 2012), violence (Westhead & Egan, 2015), proactive and reactive aggression (Jonason, Duineveld, & Middleton, 2015), and four trait aggression subscales-anger, hostility, verbal aggression, and physical aggression (Jones & Neria, 2015). Across these four studies, zero-order correlations showed that all three Dark Triad traits related positively to total bullying, violence, proactive and reactive aggression, and trait aggression in adults (with narcissism-hostility being the sole non-significant relation).…”