Identification of Random Responders on MMPI Protocols

In clinical practice, indicators of random or irrelevant responses on MMPI protocols are typically not examined, and, if obtained, assumed to be the result of either gross psychopathology or attempts to malinger. A sample of 40 computer-generated random profiles and 40 profiles of forensic outpatien...

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Bibliographic Details
Published in:Journal of personality assessment 1983-08, Vol.47 (4), p.364-368
Main Authors: Rogers, Richard, Dolmetsch, Robert, Cavanaugh Jr, James L.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Malingering - diagnosis
Mental Disorders - diagnosis
MMPI
Personality. Affectivity
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychometrics
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Summary:In clinical practice, indicators of random or irrelevant responses on MMPI protocols are typically not examined, and, if obtained, assumed to be the result of either gross psychopathology or attempts to malinger. A sample of 40 computer-generated random profiles and 40 profiles of forensic outpatients were compared on validity scales, clinical scales, and scales specially designed to detect randomness (TR index and Carelessness Scale). Results of discriminant analysis indicated differentiating patterns of responses with random profiles generally elevated. Further, the accuracy of several clinical decisions rules were evaluated, The "F > 80 and TR > 4" rule was found to have the greatest clinical utility at correctly classifying random responders.
ISSN:0022-3891
1532-7752
DOI:10.1207/s15327752jpa4704_5