Short Dark Triad (SD3)
Three less-flattering personality tendencies: scheming, self-promotion and callous impulsivity.
About this scale
The Dark Triad is three subclinical personality tendencies found in ordinary people: Machiavellianism (scheming and manipulation), narcissism (grandiosity and wanting attention) and psychopathy (callousness and impulsivity). Bands use the scale midpoint, not norms, and are not a diagnosis; the authors' student sample averaged 3.1, 2.8 and 2.4.
SourceJones, D. N., & Paulhus, D. L. (2014). Introducing the Short Dark Triad (SD3): A brief measure of dark personality traits. Assessment, 21(1), 28–41. Listed by the author as public domain, available without permission (since superseded by the SD4).