Abstract
The rating method and the method of successive categories, which have been developed in the field of psychophysics, are often utilized for rating the objects by use of the successive categories expressed by words. This paper points out several questions about the conventional methods and proposes a new method from the viewpoint that the rating conducts can be regarded as the logical judgement, taking into consideration the fuzziness in the meaning of words and the subjective difference of feeling. The proposed method is applied to a problem of rating the acoustic noise in time series and is experimentally shown to be useful for clarifying the criterion of judgement and the context effect.
