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The PAI and feigning: A cautionary note on its use in forensic-correctional settings
R Rogers1, K W Sewell, K R Cruise
1University of North Texas, Denton 76203-1280, USA.
Assessment
|December 4, 1998
Summary
This study investigated feigning indicators in forensic settings. The Negative Impression (NIM) scale showed promise for screening malingering in these populations.
Area of Science:
- Psychological assessment
- Forensic psychology
- Malingering detection
Background:
- Feigning indicators derived from general populations may not apply to forensic settings.
- Cross-validation with known-groups is crucial for forensic samples.
Purpose of the Study:
- To evaluate the applicability of feigning indicators in forensic and correctional populations.
- To cross-validate these indicators using a known-groups design.
Main Methods:
- Data collected from 57 malingerers and 58 genuine patients across two forensic/correctional sites.
- Investigated Negative Impression (NIM) scale, Malingering Index, and Rogers Discriminant Function (RDF).
Main Results:
- Rogers Discriminant Function (RDF) was not applicable to forensic referrals.
- NIM 77T served as a useful screen for forensic samples.
- Extreme elevations on NIM (>/=110T) and Malingering Index (>/=5) showed convergent evidence of feigning.
Conclusions:
- The Negative Impression (NIM) scale is a potentially valuable tool for detecting malingering in forensic contexts.
- Combined use of NIM and Malingering Index may enhance feigning detection across different samples and designs.
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