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MMPI PROFILES OF CHRONIC SCHIZOPHRENICS

Abstract

This study was attempted to identify MMPI subscals which significantly discriminate between the chronic schizophrenics and the normal on the basis of MMPI scores. Also, it was designed to classify the types of MMPI profiles in the chronic schizophrenics. Subjects were 134 college students and 134 chronic schizophrenics who were inpatient or outpatient in Seoul National Mental Hospital during the period from Sep. 1989 to Mar. 1991. In the MMPI subscales, execpt L, K, and Si scale, chronic schizophrenic group had significantly higher score than the normal group. It was F, Sc, Pa, and Pt that well discriminate these two groups. Three subgroups were extracted from the chronic schizophrenics by cluster analysis of MMPI. The first group showed a typical psychotic profile in which T scores of L, F, and K scale belonged to above 70, configured a reverted "V" pattern, and T scores of Sc, Pt scale belonged to the range of 65 to 75 point. The number of case classified into this subgroup was 44 subjects (32.8%). The second subgroup showed a neurotic and psychotic profile which had L, F, and K scale with normal range of 55 to 59 T score and Hs, D, Pd, Pt, and Sc scale with range of 60 to 64 T score. The number of 45 subjects belonged to this subgroup(33.6%). The third subgroup showed a normal profile which had T scores of all validity and clinical scales that belonged to the range of 40 to 60 point. The number of 45 subjects belonged to this subgroup(33.6%). Among the chronic schizophrenics the percentage of cases had above of 60 point have diagnostic meaning. Finally the factors considered in administration and interpretation of MMPI were discussed.

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