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Date of Award



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Date Available to Non-EWU Users

June 2023

Document Type

Thesis: EWU Only




"Psychopathy encompasses two distinct factors, Factor 1 and Factor 2 (Hare, 1991, 2003). Factor 1, is characterized by affective-interpersonal traits of psychopathy (Benning, Patrick, Hicks, Blonigen, & Krueger, 2003 ; Hare 1991, 2003) while Factor 2, is characterized by impulsive antisocial behavior (Benning et al., 2003; Hare 1991, 2003). Research abundantly shows that males tend to score higher on personality traits associated with Factor 2 (Hare, 1991), but there are inconsistencies in the literature regarding females relationship to the psychopathy subtypes. Research shows that there is a significant negative correlation between psychopathy scores and intelligence (O'Kane, Fawcett, & Blackburn, 1996). There also is a positive correlation between aggression level and psychopathy scores (Porter & Woodworth, 2006). This study sought to explore the relationship between gender, verbal and performance intelligence, and psychopathic traits on type of aggression. Two hundred and twenty five undergraduate students, (61 males, 164 females) completed a self-report psychopathy scale, an intelligence scale, and an aggression measure in exchange for research credit. Results show that psychopathy Factor 1 predicted aggression type above and beyond psychopathy Factor 2, gender, and intelligence. Results also show that individuals high on psychopathic Factor 1 traits tended to be high on premeditated aggression and low on performance intelligence. Based on these results it is suggested that adding psychopathy and intelligence to gender significantly predicts aggression. These results are important in order to design interventions with the purpose of reducing the negative impact of criminal behavior on the community"--Leaf iv.