Psychopathy is a topic of extreme interest in the psychological community and stimulates widespread debate on its various aspects. There have been many studies that have attempted to define and measure psychopathy (e.g. Levenson, Kiehl & Fitzpatrick, 1995), but it is commonly thought to be a combination of specific traits and behaviors (Lilienfeld & Arkowitz, 2007). Psychopaths commonly have many socially unattractive traits such as callousness and insincerity (Snowden & Gray, 2011), however the trait this report will focus on is impulsivity. Hare's Psychopathy Checklist (PCL) (Hare, 1980, as cited in Bartol, 1999) and Psychopathy Checklist Revised (PCL-R) (Hare, 1991, cited in Bartol) are widely recognized as a reliable method for measuring male psychopathy in populations criminals (Bartol). The PCL-R is a twenty-item checklist recognized for distinguishing three areas of psychopathic traits: interpersonal deficits (how they interact with others); affective deficits (lack of feelings or emotions); and impulsive and criminal behavior (Lilienfeld & Arkowitz, 2007). Arguments have emerged regarding the ability of the PCL-R to distinguish between those who have extreme mental disorders that could influence outcomes and those who do not (Howard, 1990, cited in Bartol). Levenson, Kiehl, and Fitzpatrick (1995 ) believed that the ability to measure psychopathy in a noninstitutionalized population would be of great interest. Using the PCL as a model, Levenson et al created a 26-item self-report questionnaire. Karpman (1948, as cited in Levenson et al, 1995) suggested the need for a distinction between primary psychopaths (manipulative and deceptive traits) and secondary psychopaths (extreme impulsivity and anxiety, resulting from... middle of paper...) . ....the relationship between impulsivity and psychopathy among a university population. Our hypothesis was that impulsivity would be positively correlated with secondary psychopathy. Based on Snowden and Gray's (2011) study, evidence shows that impulsivity was significantly related to secondary psychopaths in a college population. criminal population. Similar results are expected in our study as Snowden and Gray used the PCL-R to measure psychopathy, which was used as a template to form the LSRP that we used to measure psychopathy in our Impulsivity Measure (BIS) population. . We expect the LSRP and BIS to measure the relationship between psychopathy and impulsivity in non-institutionalized populations and, in line with Snowden and Gray, we expect impulsivity to be only slightly, if at all, related to primary psychopathy.