信頼行動の内集団バイアス―最小条件集団を用いた分配者選択実験―

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タイトル別名
  • In-group bias in trusting behavior: A choice of allocator experiment with minimal groups
  • シンライ コウドウ ノ ナイシュウダン バイアス サイショウ ジョウケン シュウダン オ モチイタ ブンパイシャ センタク ジッケン
  • A choice of allocator experiment with minimal groups
  • 最小条件集団を用いた分配者選択実験

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抄録

The purpose of this study is to show that expectations of generalized reciprocity within one's own group are responsible for in-group trust. To test this hypothesis, an allocator choice game in the minimal group situation was used. We assigned the role of a recipient in a dictator game to all 81 subjects, and measured whether they chose to be a recipient of either an in-group or an out-group “allocator” who freely allocate a fixed reward between him/her and a recipient. The results indicate that in-group trust occurs only in the condition in which recipients know that allocators make a reward allocation knowing the group membership of their recipient; recipients show no preference for either an in-group or an out-group allocator when allocators make the decision without knowing the group membership of their recipient. It is thus shown that participants' in-group trust is derived from the general belief that people treat in-group members more favorably than out-group members—a belief about generalized reciprocity within groups.

収録刊行物

  • 心理学研究

    心理学研究 78 (1), 17-24, 2007

    公益社団法人 日本心理学会

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