Differentiations in Interpersonal Functioning Across Narcissism Dimensions

Narcissism can be conceived hierarchically at three levels: as a global construct (Level 1), as two dimensions (Level 2; grandiosity and vulnerability), and as a trifurcated model with three underlying dimensions: interpersonal antagonism, narcissistic neuroticism, and agentic extraversion (Level 3). The aim of the study was to examine how narcissism dimensions across the three levels differ in their associations with various forms of interpersonal functioning. The authors assessed multiple domains of interpersonal functioning using data collected from 447 MTurk workers, 606 students, and 365 informants. Each narcissism dimension showed unique interpersonal profiles. The profile of interpersonal antagonism largely resembles grandiose and total narcissism in its interpersonal characteristics, narcissistic neuroticism largely resembles vulnerable narcissism, and agentic extraversion does not differ much from the traditional conceptualization of extraversion in its interpersonal qualities (e.g., high communion). Future studies may benefit from studying narcissism and how it relates to other psychological constructs using the trifurcated model.