Psychometric analysis of the Psychopathic Personality Inventory (PPI) with female inmates.

Published

Journal Article

This study evaluated the reliability, internal structure, and validity of the Psychopathic Personality Inventory (PPI; Lilienfeld & Andrews, 1996) among female inmates (n = 153) housed at a multilevel prison facility. Findings from this research suggested both strengths and weaknesses associated with PPI psychopathy assessment. Reliability of the PPI was supported by internal consistency analyses of scale and subscale item sets, and test-retest reliability was supported by findings obtained with a subsample (n = 36) retested an average of 49 days after initial test administration. Validity of the PPI total score was also supported by moderate to very high correlations with other self-report measures of psychopathy. Relative weaknesses of the PPI were evident by the low or negative associations among many of the PPI subscales, moderate associations that PPI total scores demonstrated with response set indexes, and the similarity of PPI total scores among female inmates and undergraduates. Findings from this research are considered in relation to possible sex differences in the expression of psychopathy and challenges associated with the assessment of the psychopathy construct with self-report methods.

Full Text

Duke Authors

Cited Authors

  • Chapman, AL; Gremore, TM; Farmer, RF

Published Date

  • April 2003

Published In

Volume / Issue

  • 80 / 2

Start / End Page

  • 164 - 172

PubMed ID

  • 12700019

Pubmed Central ID

  • 12700019

International Standard Serial Number (ISSN)

  • 0022-3891

Digital Object Identifier (DOI)

  • 10.1207/S15327752JPA8002_05

Language

  • eng

Conference Location

  • England