Abstract
The present authors have studied the significance of personality inventory such as MMPI and YG test by deviding 172 psychiatric patients, who were tested with the both two methods, into five groups from A through E type based on the results of YG test, by drawing the averaged MMPI group profiles, and. by comparing their characteristics with each other.41.5% of the patients were schizophrenic,17.7% were of atypical psychosec,12.2% were neurotic and the rest were miscellaneous, mainly psychotic. St atistically significant difference between sexes have been found in Pt (psychasthenia scale) and D (depression scale) of Type A Group, in L (lie score), F (validity score) and K (K score)of Type D Group, and common but non significant difference have been rather impressive in all the five types disregarding sex. It is vary interesting that the profiles indicated the neutralization of female patients in Mf (masculinity-femininity scale) much more than that of male patients, as one feels in daily practice. The MMPI profiles of Type B and Type E groups, which are interpreted as emotionally instable and socially maladjusted, active or inactive, have shown more markedly pathological traits than Type C and Type D groups, which are known as stable and adjusted in general evaluation of YG profiles. Thus, it may be concluded that the both personality inventories are quite useful and significant as the rating scale of clinical state in the case of psyhciatric patients rather than as the personality test to figure out the contour of basic personality in the case of psychological subjects. Few groups whose profiles presented a little deviated results from the others can be explained by the deviated distribution of patients' diseases. The authors believe that the present study has been significant at least as an orientative one in order to push on studies of the test results in various psychotic patients.