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The schizophrenia‐organicity (Sc‐o) and psychiatric‐organic (P‐O) MMPI scales: A review
Author(s) -
Watson Charles G.
Publication year - 1984
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(198407)40:4<1008::aid-jclp2270400425>3.0.co;2-9
Subject(s) - minnesota multiphasic personality inventory , schizophrenia (object oriented programming) , psychology , psychiatry , clinical psychology , personality , social psychology
Reviewed the research on the MMPI Schizophrenia‐Organicity (Sc‐O) and Psychiatric‐Organic (P‐O) Scales, measures developed to separate brain‐damaged patients from schizophrenics and from functional psychiatric patients as a whole. Over 10 cross‐validations, the average Sc‐O scale hit rate has been 69%, which suggests that it is a better differentiator of braindamaged from schizophrenic males than most popular ability‐based organicity tests. Hit rates for five studies that contrasted organic and psychiatric patients on the P‐O scale also averaged 69%. The scales appear to be useful in both medical and psychiatric hospitals, but their validities in female samples are not well established. A system for making diagnostic decisions from ability and personality measures in combination is described, and evidence is cited that it improves on the hit rates achieved by either type of test alone.