著者
若島 孔文 松井 博史
出版者
立正大学心理学研究所
雑誌
立正大学心理学研究所紀要 (ISSN:13482777)
巻号頁・発行日
no.1, pp.43-67, 2003-03-20

本研究では、若島・佐藤・長谷川(2000) による情報回帰速度モデルのシミュレーションを行った。具体的には集団の中のある個人と、その他の集団成員全体との間の行動パターン得点の増減を計算している。ここではある個人が他の集団成員全体の異なった行動パターンを取ることにより、その個人の行動パターン得点は集団成員全体の行動パターン得点に行動パターン変容係数λを乗じた値が減じられると仮定した。同様に集団も行動パターン得点を減らすが、情報回帰速度モデルの提案に従い、減少は遅延される。この計算は社会心理学における少数派/集団影響の研究に類似した状況を扱っているが、よりマクロなダイナミクスを明らかにしようとするものである。最後に心理療法家、特に家族療法家がある個人に課題を課す際に、そこからシステム全体の変容を見込むことができる条件についての提案が示された。
著者
都築 誉史 松井 博史 菊地 学
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.83, no.5, pp.398-408, 2012 (Released:2013-03-01)
参考文献数
40
被引用文献数
2

In multi-attribute decision making, the similarity, attraction, and compromise effects warrant specific investigation as they cause violations of principles in rational choice. In order to investigate these three effects simultaneously, we assigned 145 undergraduates to three context effect conditions. We requested them to solve the same 20 hypothetical purchase problems, each of which had three alternatives described along two attributes. We measured their choices, confidence ratings, and response times. We found that manipulating the third alternative had significant context effects for choice proportions and confidence ratings in all three conditions. Furthermore, the attraction effect was the most prominent with regard to choice proportions. In the compromise effect condition, although the choice proportion of the third alternative was high, the confidence rating was low and the response time was long. These results indicate that the relationship between choice proportions and confidence ratings requires further theoretical investigation. They also suggest that a combination of experimental and modeling studies is imperative to reveal the mechanisms underlying the context effects in multi-attribute, multi-alternative decision making.
著者
都築 誉史 松井 博史 菊地 学
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.83, no.5, pp.398-408, 2012

In multi-attribute decision making, the similarity, attraction, and compromise effects warrant specific investigation as they cause violations of principles in rational choice. In order to investigate these three effects simultaneously, we assigned 145 undergraduates to three context effect conditions. We requested them to solve the same 20 hypothetical purchase problems, each of which had three alternatives described along two attributes. We measured their choices, confidence ratings, and response times. We found that manipulating the third alternative had significant context effects for choice proportions and confidence ratings in all three conditions. Furthermore, the attraction effect was the most prominent with regard to choice proportions. In the compromise effect condition, although the choice proportion of the third alternative was high, the confidence rating was low and the response time was long. These results indicate that the relationship between choice proportions and confidence ratings requires further theoretical investigation. They also suggest that a combination of experimental and modeling studies is imperative to reveal the mechanisms underlying the context effects in multi-attribute, multi-alternative decision making.