Narcissism is a relatively stable personality trait, which is most accurately described by three facets: agentic, antagonistic, and neurotic. Existing studies support the central role of antagonistic narcissism and its role in explaining the process of fluctuation in narcissism. However, there is a lack of a suitable adjective-based measure of antagonistic narcissism, resulting in intensive longitudinal studies assessing only agentic and neurotic narcissism. To address this gap and to advance research on fluctuations in narcissism, this article introduces the Narcissistic Antagonism Scale (NAS). Across six studies (total N = 1,862; k = 14,927 observations), we establish the NAS's factorial, convergent, and divergent validity; reliability; and temporal stability. The three-factor model of narcissism, including antagonistic aspects, reproduces and proves to be invariant across daily and momentary perspectives. The NAS exhibits good psychometric properties at both between- and within-person levels. It is a valuable addition for intensive longitudinal studies and facilitates a nuanced examination of narcissistic states across diverse contexts. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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介绍自恋对抗量表：瞬间自恋评估中缺失的一块拼图。


自恋是一种相对稳定的人格特质，最准确地描述为三个方面：代理性、对抗性和神经质。现有研究支持对抗性自恋的核心作用及其在解释自恋波动过程中的作用。然而，缺乏合适的基于形容词的对抗性自恋测量方法，导致密集的纵向研究仅评估代理性和神经性自恋。为了解决这一差距并推进对自恋波动的研究，本文介绍了自恋拮抗量表 （NAS）。在六项研究 （总 N = 1,862;k = 14,927 次观察） 中，我们确定了 NAS 的因子、收敛和发散效度;可靠性;以及时间稳定性。自恋的三因素模型，包括对抗方面，在日常和瞬间的视角中复制并被证明是不变的。NAS 在人际和人内水平上都表现出良好的心理测量特性。它是深入纵向研究的宝贵补充，有助于在不同背景下对自恋状态进行细致的检查。（PsycInfo 数据库记录 （c） 2024 APA，保留所有权利）。