(1) Background: The aim of the study was to investigate if Dark Triad (DT)—which includes psychopathy, Machiavellianism and narcissism—impulsiveness Honesty-Humility (HH), can predict individuals’ intended behavior in a one-shot Prisoner’s Dilemma Game (PDG) whether this relationship is moderated by gender. (2) Methods: A cross-sectional correlational design used, examining regression moderatio...

Adolescence is an important developmental period for both trust behavior and personality maturation, individual differences in decisions may be related to different traits. In the current study, a group of adolescents (n = 483, Mage 13.5, SDage 0.4) played two counterbalanced conditions multi-round game. one condition, partner displayed trustworthy (the condition), while other condition untrust...

People differ in the extent to which they identify with humans beyond their ingroup and with non-human living things. We refer to the former as the Connectedness to Humanity (CH) and to the latter as the Connectedness to Nature (CN). In a sample of 324 undergraduate students, CH and CN were operationalized using the Identification with All Humanity Scale (McFarland et al., 2012) and the CN Scal...

Why is a patient with a destroyed brain considered dead rather than moribund and irreversibly comatose? The world has been grappling with this question for the past four decades with little success. The recently released white paper of the President's Council on Bioethics is in many respects a refreshing, thoughtful, and comprehensive reexamination of this complex topic. It offers a very helpfu...

To understand the similarities and differences in personality traits and moral disengagement associated with pathological narcissism and psychopathy, 740 Italian active community members who voluntarily participated in the study were administered the Italian versions of the Pathological Narcissism Inventory, the Levenson Self-Report Psychopathy Scale, the HEXACO Personality Inventory, and the M...

The purpose of the present study was to determine if a general factor of personality (GFP) could be extracted from the six dimensions of the HEXACO model and four factors of trait emotional intelligence. Participants were 1,192 pairs of twins (666 MZ pairs, 526 DZ pairs) between the ages of 19 to 86 years, who completed the Trait Emotional Intelligence Questionnaire - Short Form and the HEXACO ...

Personality features are associated with several relationship outcomes. We examined whether specific personality features differed in their associations with ‘‘mate retention’’ strategies. We examined the unique associations that personality features had with mate retention strategies reported by 179 community members in romantic relationships for at least 6 months. Personality features were as...

Although several studies have linked Life History Strategy (LHS) variation with variation in the Five Factor Model personality dimensions, no published research has explored the relationship of LHS to the HEXACO personality dimensions. The theoretically expected relationship of the HEXACO Emotionality factor to LHS is unclear. The results of two studies (N = 641) demonstrated that LHS indicator...