Development and validation of a Response Bias Scale (RBS) for the MMPI-2.
This study describes the development of a Minnesota Multiphasic Personality Inventory (MMPI-2) scale designed to detect negative response bias in forensic neuropsychological or disability assessment settings. The Response Bias Scale (RBS) consists of 28 MMPI-2 items that discriminated between persons who passed or failed the Word Memory Test (WMT), Computerized Assessment of Response Bias (CARB), and/or Test of Memory Malingering (TOMM) in a sample of 1,212 nonhead-injury disability claimants. Incremental validity of the RBS was evaluated by comparing its ability to detect poor performance on four separate symptom validity tests with that of the F and F(P) scales and the Fake Bad Scale (FBS). The RBS consistently outperformed F, F(P), and FBS. Study results suggest that the RBS may be a useful addition to existing MMPI-2 validity scales and indices in detecting symptom complaints predominantly associated with cognitive response bias and overreporting in forensic neuropsychological and disability assessment settings.
Gervais
Roger O
RO
Neurobehavioural Associates, Canada. rgervais@shaw.ca
Ben-Porath
Yossef S
YS
Wygant
Dustin B
DB
Green
Paul
P
D000328:Adult; D001007:Anxiety / Q000523:psychology; D015982:Bias; D006259:Craniocerebral Trauma / Q000523:psychology; D008192:Deception; D003863:Depression / Q000523:psychology; D004185:Disability Evaluation; D005260:Female; D005555:Forensic Psychiatry / Q000706:statistics & numerical data; D006801:Humans; D008950:MMPI / Q000706:statistics & numerical data*; D008297:Male; D008306:Malingering / Q000523:psychology; D008568:Memory / Q000502:physiology; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D009484:Neuropsychology / Q000706:statistics & numerical data; D010146:Pain / Q000523:psychology; D011237:Predictive Value of Tests; D011594:Psychometrics / Q000706:statistics & numerical data; D012189:Retrospective Studies; D012680:Sensitivity and Specificity