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The Inconsistency of Inconsistency Scales: A Comparison of Two Widely Used Measures
Author(s) -
Nikolova Natalia L.,
Hendry Melissa C.,
Douglas Kevin S.,
Edens John F.,
Lilienfeld Scott O.
Publication year - 2012
Publication title -
behavioral sciences and the law
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.649
H-Index - 74
eISSN - 1099-0798
pISSN - 0735-3936
DOI - 10.1002/bsl.1996
Subject(s) - psychology , personality assessment inventory , clinical psychology , personality , scale (ratio) , california psychological inventory , clinical practice , psychometrics , social psychology , medicine , physics , family medicine , quantum mechanics
This study compared the inconsistent responding validity scales of the Personality Assessment Inventory (PAI) and the Psychopathic Personality Inventory (PPI)/PPI‐Revised (PPI‐R) in two correctional samples to determine the extent to which they overlap in identifying invalid profiles. Results revealed substantial differences in the way the inconsistent responding validity scales of these measures performed. In particular, the PAI identified far fewer participants as having responded inconsistently compared with the PPI/PPI‐R. We discuss the implications of our findings for clinical practice, and potential concerns with the use of a single measure to identify inconsistent responding in clinical practice and research. Copyright © 2012 John Wiley & Sons, Ltd.