Yumi Nakagawa- Doctor of Psychology
- Lecturer at Hokkai Gakuen University
Yumi Nakagawa
- Doctor of Psychology
- Lecturer at Hokkai Gakuen University
ingroup cooperation, social identity, reciprocity, sport, fan, real groups
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6
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Introduction
Skills and Expertise
Current institution
Publications
Publications (6)
The present study investigated the replicability of a series of Nakagawa et al.’s research. The findings in the previous studies showed ingroup cooperation based on the Social Identity Theory (SIT) and the Bounded Generalized Reciprocity hypothesis (BGR). The cost of cooperation can moderate the relationship between ingroup collaboration and the ex...
This study examined the effect of others’ behaviour on ingroup cooperation in intergroup conflict situations. Following cultural group selection theory, reference to other group members’ behaviour enhances ingroup cooperation in these situations. The validity of the cultural group selection theory was confirmed using an evolutionary simulation and...
We aimed to examine the external validity of social identity theory (SIT) and the bounded generalized reciprocity hypothesis (BGR) generated ingroup cooperation in real groups. Previous studies demonstrated that ingroup cooperation predicted by both theories was observed in the minimal group, whereas neither theory was supported in real groups. How...
This study aimed to test the validity of social identity theory (SIT) and bounded generalized reciprocity hypothesis (BGR) to explain ingroup cooperation in real social groups. Each of the validity of SIT and BGR have been discussed by social psychologists for a long time. However, recent studies indicate that both theories could explain ingroup co...
In this study, we compared the ability of both the Social Identity Theory (SIT) and Bounded Generalized Reci- procity Hypothesis (BGR) to explain ingroup cooperation in real groups. We conducted the vignette experiments that were designed as controlling various confounded factors to possibility influence ingroup cooperation among Japanese baseball...
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 vi...
