Abstract
The authors have made a ten year investigation of the Yatabe-Guilford Personality Inventory. during its use in the annual pre-employment health examination of a certain company, from 1968 to 1977. The subjects were 6,619 female company employees aged from 17 to 22 years old. The results were as follows : 1) The percentage distribution of YG profile patterns of the workers has apparently changed over the ten year period. The percentage of A and B types has considerably increased and consequently the percentage of C and D types has decreased, as Fig. 1 shows. 2) The percentage distribution of YG profile patterns of the group graduated from university seemed to be significantly different from the two other groups that had left college or high school. As the results of Tables 2,3 and 4 indicate, the percentage of D type was high in the university graduates group. The percentage of B type represented in the high school leavers group was considerably higher than that of the university graduates group. 3) It is well known that there is a close relationship between the results of YG profile patterns and the Cornell Medical Index. In our study, approximately fifty percent of III and IV types of CMI have been judged as B or E type of YG, while no C type was recognized in III and IV type. 4) The YG profile patterns were converted to B type from other types in the patients suffering from dismenorrhea and other psychosomatic disorders and also in the workers chiefly complaining of pain and stiffness of the neck, shoulders and arms. 5) The conversion to B type has been noticed even in the control group to some extent, one and a half years after commencing work. 6) The average scores of D and C items of workers complaining of pain and stiffness of the neck, shoulders and arms increased significantly and G item decreased significantly, as compared with the test scores of the pre-employment health examination. 7) The average D item score of the control group also increased significantly one and a half years later.
