Examining the Levenson Self Report Psychopathy Scale using a Graded Response Model

The current study examined gender differences on the Levenson Self-Report Psychopathy Scale (LSRP; Levenson, Kiehl, & Fitzpatrick, 1995), a self-report measure of psychopathic personality traits, in an undergraduate sample using a Graded Response Model. Results demonstrated that some items on the LSRP are not contributing to the total score of the LSRP and could be removed. Additionally, differential item functioning demonstrated that items are endorsed differently by gender. Specifically, males endorsed items suggesting proneness to boredom and impulsivity, as well as “active” characteristics of psychopathy. This suggests that males with psychopathic characteristics actively seek out individuals to harm. However, females endorsed more “passive” items, suggesting a propensity to manipulate individuals with whom they come into contact, rather than seeking out individuals to harm.

► Some items do not contribute.
► Gender differences present.
► Males active; females passive.