Journal
JOURNAL OF SOCIAL AND PERSONAL RELATIONSHIPS
Volume 38, Issue 7, Pages 2008-2028Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/02654075211001127
Keywords
Dark tetrad; friends and family; Machiavellianism; narcissism; personality traits; psychopathy; relationship interference; romantic relationships; sadism; social psychology
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The research found that friends and family members' dark personality traits were related to their interference in romantic relationships, with sadism specifically affecting interference in friends' relationships, while high narcissism and surprisingly low Machiavellianism influenced interference in family members' relationships.
Certain disapproving friends and family may interfere in others' romantic relationships by undermining commitment processes. In the current study, we assessed whether friends and family members' scores on the Dark Tetrad, a constellation of socially aversive personality traits including narcissism, Machiavellianism, psychopathy, and sadism, predict relationship interference. In Study 1, 206 people selected a friend who was currently in a romantic relationship they disliked or disapproved of. They then indicated how often they interfered in the disliked couple's relationship, completed measures of the Dark Tetrad, and additional measures of interest (e.g., gender, closeness to the target of interference). In Study 2, 180 people selected a family member who was currently or formerly in a disliked relationship, before completing the same measures. In both studies, overall dark personality and closeness to the friend or family member positively correlated with relationship interference. Additionally, when controlling for overall dark personality and the other Dark Tetrad traits, sadism specifically predicted interference with friends' relationships; high narcissism and, surprisingly, low Machiavellianism predicted interference with family members' relationships. Implications for dark personality traits and relationships are discussed.
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