著者

宇佐美 慧

出版者

公益社団法人 日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

vol.79, no.6, pp.536-541, 2009 (Released:2011-11-03)

参考文献数

18

被引用文献数

3 1

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Paired-comparison is a well-known and effective method for scaling stimuli. In situations where judgment is affected by multiple factors, it is necessary to take these multiple effects into consideration. However, there is no very effective method to deal with this problem, especially when the data is binary. This study is to propose a new method that expands the Bradley-Terry model to overcome this problem. The proposed method allows estimation of both the scaled value of each stimuli and the influence of each factor. This article includes an analysis of the real data of a sensory test to verify the efficacy of the proposed method. Lastly, a possible expansion of the Bradley-Terry model for more general situations is discussed.