実在集団を用いた社会的アイデンティティ理論および閉ざされた一般互酬仮説の妥当性の検討:広島東洋カープファンを対象とした場面想定法実験  [in Japanese] The theoretical validity of Social Identity Theory and the Bounded Generalized Reciprocity Hypothesis in real social groups: A vignette experiment on Hiroshima Toyo Carp fans  [in Japanese]

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Author(s)

Abstract

In this study, we tested the theoretical validity of both Social Identity Theory (SIT) and the Bounded Generalized Reciprocity Hypothesis (BGR) for explaining in-group cooperation in real social groups. While most previous investigation on real social groups has found support for SIT, confirmatory evidence for BGR remains limited. We conducted a vignette experiment in which reciprocity was manipulated by controlling knowledge of group membership. The participants were 117 undergraduate students who were baseball fans. To control expectation of reciprocity in the experiment, we asked participants to imagine scenarios where they helped others who wore either the same baseball team T-shirts as they did or plain T-shirts. Consistent with BGR, participants tend to cooperate with in-group members when both they and their partner knew that they might be supporters of the same team. On the other hand, participants showed in-group cooperation even when only they knew their partner's group membership. This finding coincided with SIT. These results thus further verified the theoretical validity of both SIT and BGR in real social groups.

Journal

  • Japanese Journal of Social Psychology

    Japanese Journal of Social Psychology 30(3), 153-163, 2015

    The Japanese Society of Social Psychology

Codes

  • NII Article ID (NAID)
    130005074513
  • NII NACSIS-CAT ID (NCID)
    AN10049127
  • Text Lang
    JPN
  • ISSN
    0916-1503
  • NDL Article ID
    026268111
  • NDL Call No.
    Z6-2798
  • Data Source
    NDL  J-STAGE 
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