Effects of Two MMPI-2 Validity Scales on Basic Scale Relations to External Criteria
Many clinicians have come to rely on the broad array of validity scales available- on the MMPI and the MMPI-2. In this study, we evaluated the utility of 2 MMPI-2 validity scales, the K scale and VRIN scale, in a sample of 692 psychiatric inpatients. Specifically, the effects of the K-correction pro...
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Veröffentlicht in: | Journal of personality assessment 1998-02, Vol.70 (1), p.87-102 |
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Zusammenfassung: | Many clinicians have come to rely on the broad array of validity scales available- on the MMPI and the MMPI-2. In this study, we evaluated the utility of 2 MMPI-2 validity scales, the K scale and VRIN scale, in a sample of 692 psychiatric inpatients. Specifically, the effects of the K-correction procedure and the exclusion of protocols based on VRIN scale elevations were examined on the relation between MMPI-2 basic clinical scales and external criteria including both self-report and clinician ratings of psychopathology. Results indicated that the K-correction procedure commonly used with the MMPI and MMPI-2 did not result in higher correlations with external criteria in comparison to non-K-corrected scores. In contrast, MMPI-2 protocols that produced VRIN T-score values less than or equal to 80 generally produced lower correlations with patient self-reports and clinician ratings of psychopathology in comparison to protocols judged to be valid based on VRIN scale results. |
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ISSN: | 0022-3891 1532-7752 |
DOI: | 10.1207/s15327752jpa7001_6 |