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2. MMPI-2 Validity Scores In Defense- Versus Plaintiff-Selected Examinations: A Repeated Measures Study of Examiner Effects

Author

David D. Fox, William T. Tsushima, Manfred F. Greiffenstein, Kyle B. Boone, and W. John Baker

Subjects
Adult, Male, medicine.medical_specialty, Psychometrics, Concordance, Developmental psychology, Arts and Humanities (miscellaneous), Minnesota Multiphasic Personality Inventory, MMPI, Forensic psychiatry, Developmental and Educational Psychology, medicine, Humans, Personality test, Reproducibility of Results, Repeated measures design, Forensic Psychiatry, Response bias, United States, Psychiatry and Mental health, Clinical Psychology, Neuropsychology and Physiological Psychology, Scale (social sciences), Female, Psychology, Clinical psychology
Abstract

The effects of forensic examiner role on validity scores have rarely been studied empirically. We used a repeated measures design to examine the association between examiner role (plaintiff- and defense-selected neuropsychologists) and scores on eight Minnesota Multiphasic Inventory-2 validity scores (MMPI-2-VRIN, -TRIN, -L, -K, -F, -Fb, -Fp, and -FBS) of the same 80 individuals. All 80 were involved in litigation following mostly minor neurological injuries. We found no significant within-group differences on any of the MMPI-2 validity scales. Concordance of pass/fail rates between examinations was above 80%, except for MMPI-2-Fb. For example, the Symptom Validity Scale (MMPI-2-FBS) showed equivalently high failure rates (70%) during both examinations. This study does not support the view that examiner role affects symptom validity scores in forensic settings.

Published
2010
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3. Comparison of MMPI-2 validity scale scores of personal injury litigants and disability claimants

Author

Jessica Fabrigas, Olga Geling, and William T. Tsushima

Subjects
Adult, Male, Malingering, media_common.quotation_subject, Poison control, Logistic regression, Disability Evaluation, Arts and Humanities (miscellaneous), Minnesota Multiphasic Personality Inventory, MMPI, Predictive Value of Tests, Developmental and Educational Psychology, Personality, Humans, Disabled Persons, media_common, Receiver operating characteristic, Area under the curve, Reproducibility of Results, Middle Aged, Response bias, Regression, Psychiatry and Mental health, Clinical Psychology, Neuropsychology and Physiological Psychology, Logistic Models, ROC Curve, Area Under Curve, Female, Psychology, Social psychology, Clinical psychology
Abstract

Five validity scales derived from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), the Infrequency Scale (F), Infrequency-Psychopathology Scale (F[p]), Symptom Validity Scale (FBS), Henry-Heilbronner Index (HHI), and Response Bias Scale (RBS) were evaluated in 118 litigation patients (LPs) and 163 clinical patients (CPs). Varied statistical methods, including hierarchical logistic regression analyses, Receiver Operating Characteristic (ROC) curve, Area Under the Curve (AUC) values, and sensitivity/specificity analyses, showed that RBS performed better than the other four scales in identifying LPs. The regression analyses found RBS to be the most significant predictor of LP and CP group membership (p

Published
2011

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