Validity of the Self-Report Psychopathy Scales (SRP-III Full and Short Versions) in a Community Sample

Abstract

The psychometric properties of the 64-item Self-Report Psychopathy Scale–III (SRP-III) and its abbreviated 28-item SRP–Short Form (SRP-SF) seem promising. Still, cross-cultural evidence for its construct validity in heterogeneous community samples remains relatively scarce. Moreover, little is known about the interchangeability of both instruments. The present study addresses these research gaps by comparing the SRP-III and SRP-SF factorial construct validity and nomological network in a Belgian community sample. The four-factor model of psychopathy was evaluated (N = 1,510) and the SRP scales’ relationship with various external correlates (i.e., attachment, bullying and victimization, right-wing attitudes, right-wing authoritarianism, and response styles) was examined (n = 210). Both SRP versions demonstrated a good fit for the four-factor model and a considerable overlap with the nomological network of psychopathy. The results suggested that the SRP-SF provides a viable alternative to the SRP-III for assessment in the community. Theoretical and practical implications are discussed.

Keywords

psychopathy assessment Self-Report Psychopathy Scales community nomological network confirmatory factor analysis

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