Sinece1978, the candidates for the Kitasato University, Medical School have been requested to answer the translated edition of MMPI. For these5years, two kinds of Japanese editions were adopted for test alternately, and total of3894male and786female candidates took this test. Using this material, the authors have studied the influence of translation into Japanese on the response for each MMPI item and profile pattern. The results were as follows: (1)Excluding D and Si scales, the mean scores of the remaining 12scales of either Doshisha or Nihon-edition were located within a difference of one standard deviation from the mean values of the norm group. (2)By means of item by item comparison, considerably large difference between the two editions was observed in the percentage of cases giving?gtrue?hresponse. This fact suggested that difference between the editions had to be taken into consideration when individual items were used separately or scales were newly constructed by using items with high risk of different response pattern.
