104 samples measured by 29 quality variables with 81 categories including bradyacusia andtinnitus due to head injury were analyzed by the QUANTIFICATION THEORY TYPE III, and then 5 axes were obtained.
The first axis shows the degree of total lesion by the head injury, bradyacusia and tinnitus. In the axis, the following variables-the degree of tinnitus, the existence or not of bradyacusia, the starting time of the tinnitus and the abnormality of the eardrum-have the large range of quantities of categories, that is to say, they have big influence to the quantities of samples.
The quantities of almost all the categories show the monotonity, and some of them show even the linearity. This means the possibility of analyzing them as the continuous quantity variables. In the 2nd, 3rd, 4th, 5th axes, the starting time of the tinnitus and the frequency of the sound of the tinnitus have the large range of quantities of categories.
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