dgeorg03@ucy.ac.cy Methods Background Participants: 488 undergraduate students (132 males; 306 females; Mage 20.07, SD 2.18) of Finance, Law and Economics Departments from the University of Cyprus Procedure: Questionnaires administered to students in class setting. Measures : Psychopathic Personality Inventory Revised (PPI-R; Lilienfeld & Andrews, 1996). The PPI was developed to measure the core personality features of psychopathy in noninstitutional populations. Psychopathy and antisocial behavior have long been documented as going hand in hand. Premeditated and impulsive aggression are both part of the psychopath’s behavioral repertoire (Serin & Amos, 1995; Hemphill, Templeman, Wong & Hare, 1998), although it is more likely that aggression by psychopaths will have an instrumental component than aggression by others (Porter & Woodworth, 2006). Discussion Results are consistent with findings that relate aggression in general to psychopathy, but they are unlike findings that relate instrumental aggression with content scales belonging to the interpersonal-affective factor of psychopathy (fearlessness, social influence, stress immunity) and reactive aggression with content scales of the impulsive anti-social psychopathic type (Cornell et al, 1996; Chase, O’Leary & Heyman, 2001). The lack of such a finding in this study may be due to the nature of the sample (university students at a public institute of higher learning) or due to the conceptualization of aggression itself. Most studies seeking to examine qualitative differences of violent acts usually involve incarcerated offenders. Such results may not apply to community samples wherein antisocial behavior in the form of overt physical violence is much less prevalent. Constructs of indirect aggression (i.e. social exclusion, malicious gossiping, guilt induction) represent behaviors that may seem nonaggressive (Archer & Coyne, 2005), and have been tied to increased levels of social skills (Kaukiainen et al., 1996), which is characteristic of a university student sample. Therefore, it may be more fitting to examine premeditation in relation to indirect violence in community samples. Our findings emphasize Machiavellian Egocentricity in predicting impulsive and combined aggression, indicating the importance of further examination of psychopathy subscales in relation to types of instrumental and impulsive overt and covert aggression in community samples. In addition, the lower rating on Blame Externalization in predicting Impulsive Aggression compared to controls may indicate that justification of aggression through blame externalization is superseded by higher stress and Machiavellian egocentricity. Further examination of psychopathy subscales and factors in relation to aggression is warranted. Impulsive Premeditated Aggression Scale (IPAS; Stanford, Houston, Mathias, Villemarette-Pittman, Helfritz & Conklin, 2003) A 30-item self-report instrument to assess impulsive and/or premeditated characteristics of individual aggressive acts. Impulsive aggression is defined as an immediate, uninhibited, aggressive response to provocation. Premeditated aggression is defined as a planned, conscious aggressive act. The current study investigates the association between psychopathy content scales and aggressive behavior, separated into premeditated aggression (PM), impulsive aggression (IA) and combined premeditated and impulsive aggression (COM). **p ≤001; *p ≤.05; Group 1 is the Premeditated Aggression Group (PM). Group 2 is the Impulsive Aggression Group (IA). Group 3 is the Combined Impulsive and Premeditated Aggression Group (COM). Group 4 is the control group. Aims of present study Content scales of psychopathy in relation to impulsive vs. premeditated aggression Dora Georgiou, Melina Nicole Kyranides, Christina Adamou, Kostas Fanti & Georgia Panayiotou University of Cyprus, Nicosia, Cyprus Results The multinomial logistic regression comparing control group with aggression groups (IA, PM, COM) on the 8 subscales of the PPI is significant, x² (27, N=488) = 72.5, p <.001. Compared to controls, those grouped into Impulsive Aggression (IA) and Combined Aggression (COM) scored higher on Machiavellian Egocentricity, whereas, it seems that no PPI subscales predicts the outcome of premeditated aggression (PM) compared to controls. The single biggest predictor for combined and impulsive aggression, compared to control group, is Machiavellian Egocentricity, however, no significant differences on this subscale were identified between IA and PM. 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