Psychopathy and low communion: An overlooked and underappreciated core feature.

Psychopathy is a personality disorder that is robustly linked to interpersonal difficulties, delinquency, aggression, and general antisocial conduct. Previous research has explored a number of potential deficits underlying these behaviors including reduced fear, impaired emotional responding, and poor response modulation. Drawing from extant personality work that has demonstrated the importance of interpersonal antagonism as a core feature of psychopathy, the present project examines low communion as a potential core feature of the disorder in a novel manner-using a social discounting lab task.

Development of a Short Form of the Five-Factor Narcissism Inventory: the FFNI-SF.

The Five-Factor Narcissism Inventory (FFNI; Glover, Miller, Lynam, Crego, & Widiger, 2012) is a 148-item self-report inventory of 15 traits designed to assess the basic elements of narcissism from the perspective of a 5-factor model. The FFNI assesses both vulnerable (i.e.

Agreeableness accounts for the factor structure of the youth psychopathic traits inventory.

The present study investigated the relationship between the Five-Factor Model (FFM) and the Youth Psychopathic Traits Inventory (YPI; Andershed, Ker, Stattin, & Levander, 2002) in an undergraduate sample. It was hypothesized that Agreeableness would saturate the lower- and higher-order scales of the YPI, and that taking Agreeableness into account would reduce the intercorrelations among the three factors of the YPI. These hypotheses were explored in a sample of 466 undergraduates who completed the YPI and the Revised NEO Personality Inventory (NEO-PI-R; Costa & McCrae, 1992).

Development of a short form of the elemental psychopathy assessment.

The Elemental Psychopathy Assessment (EPA) is a 178-item self-report measure designed to assess the basic elements of psychopathy from a Five-Factor Model perspective: Anger, Arrogance, Callousness, Coldness, Disobliged, Distrust, Dominance, Impersistence, Invulnerable, Manipulation, Opposition, Rashness, Self-Assurance, Self-Centered, Self-Contentment, Thrill-Seeking, Unconcern, and Urgency. The present article reports on the development of a short-form version of the EPA in two large undergraduate samples using item response theory. The validity of the resultant, 72-item, item response theory-derived short form is compared against the validity for the full scale in the undergraduate samples and smaller forensic sample.