Manipulation and Instability: Exploring Machiavellianism and Borderline Personality Similarities and Differences

Machiavellianism and borderline personality are known for influencing interpersonal dynamics through manipulative behaviors. Machiavellianism is characterized by calculated, egotistic, and callous manipulation, while borderline personality involves emotionally driven impulsive manipulation due to instability and fear of abandonment. In this study, we explored the relationships of the two constructs with respect to broader personality constructs. Adult participants (N = 1011; Mage = 49.08 years, SD = 17.15) completed two measures each for Machiavellianism and borderline personality and a single inventory measuring the Big Five personality traits. Latent Profile Analysis (LPA) was used to investigate subgroups within the data. Machiavellianism was more strongly negatively associated with agreeableness and conscientiousness, while borderline personality traits were more strongly linked to neuroticism (more positively), agreeableness, and conscientiousness (both more negatively). Two distinct latent profiles emerged. Based on these findings, we suggest that Machiavellianism can align with either adaptive or maladaptive functioning, whereas a combination of Machiavellianism and borderline personality traits underscores a tendency towards manipulative behaviors with emotional instability. We suggest that future research build upon our findings by investigating concrete manipulative acts predicted by borderline personality and Machiavellianism.