Objective: Aversive ("dark") personality traits are traditionally studied as predictors of harmful or manipulative behavior, yet their underlying cognitive-affective structures remain underexplored. This research investigates whether the Dark Core of personality (D)-the common aversive essence of all dark traits-is associated with primal world beliefs, which are deep-seated assumptions about the nature of the world (e.g., viewing the world as safe, meaningful, or beautiful).
Method: Across four studies (total N = 2245), latent correlations and latent regression analyses involving D and primal world beliefs were examined.
Results: D was associated with more negative world beliefs, indicating that high-D individuals tend to hold globally pessimistic worldviews that extend beyond instrumental beliefs serving to reduce cognitive dissonance. That is, high-D individuals also see the world as less pleasurable, less stable, less regenerative, and less meaningful.
Conclusions: Specifically, the facet Meaningful emerged as uniquely associated with D, suggesting that perceiving many aspects of life as meaningless reflects a broader worldview underlying D-one that extends beyond specific beliefs used to justify aversive behavior.
Objective: This meta-analysis examined the relationships between different dimensions of narcissism and mental health, with a specific focus on internalizing forms of psychopathology.
Method: A systematic search identified 229 empirical studies (N = 185,137; k = 735 effect sizes) from four international databases (Web of Science, PubMed, Scopus, OATD) and two Chinese databases (CNKI, Wanfang Data). Because most studies relied on self-report measures, the findings primarily reflect self-reported associations. Random-effects models were used to estimate overall effects, and moderation analyses tested the roles of demographic, methodological, and construct-related variables.
Results: Grandiose narcissism was positively associated with positive mental health (r = 0.19, p < 0.001) and showed no significant association with negative mental health (r = 0.02, p = 0.26). Vulnerable narcissism was negatively associated with positive mental health (r = -0.25, p < 0.001) and positively associated with negative mental health (r = 0.39, p < 0.001). Findings based on the Admiration-Rivalry model and the three-factor model provided additional clarity regarding these associations. Significant moderators included age, measurement instruments, and construct specificity.
Conclusions: These results clarify dimension-specific links between narcissism and mental health and provide a more nuanced understanding of narcissism's psychological correlates.
Trial registration: PROSPERO: Registration No. CRD420251016464.