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.

中文翻译：

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跨自恋维度的人际功能差异。

自恋可以分为三个层次：作为一个整体结构（第 1 级），作为两个维度（第 2 级；宏伟和脆弱），以及作为具有三个基本维度的三叉模型：人际对抗、自恋神经质和代理外向性。 3 级）。该研究的目的是检查三个层次的自恋维度在与各种形式的人际功能的关联方面有何不同。作者使用从 447 名 MTurk 工人、606 名学生和 365 名线人收集的数据评估了人际交往功能的多个领域。每个自恋维度都显示出独特的人际关系。人际对抗的特征在很大程度上类似于夸大和完全自恋的人际特征，自恋型神经质在很大程度上类似于易受伤害的自恋，而代理外向性与传统的外向性概念在其人际交往品质（例如，高度共融）方面没有太大区别。未来的研究可能会受益于使用三叉模型研究自恋以及它与其他心理结构的关系。