2003 Fiscal Year Final Research Report Summary
Re-examination of the cognitive and motivational effects of cross-categorization
| Project/Area Number |
14510125
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
教育・社会系心理学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKA Takashi University of Tokyo, Graduate School of Humanities and Sociology, Associate Professor, 大学院・人文社会系研究科, 助教授 (80203959)
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| Project Period (FY) |
2002 – 2003
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| Keywords | cross-categorization / stereotype / prejudice / intergroup bias / self-relevance / cognitive operation / re-categorization |
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| Research Abstract |
We re-examined the cognitive and motivational effects of cross-categorization. Specifically, we created a new experimental paradigm and investigated the effects of self-relevance of categorization and cognitive operation of cross-cutting categories on the evaluations for cross-categories. We conducted 3 experiments and found the following facts. First, cross-categorization amplified the intergroup bias. This amplification effect occurred when a self-relevant categorization was cross-cut by another non-self-relevant categorization as well as when it was cross-cut by another self-relevant categorization. Secondly, cognitive operation of cross-cutting categories decreased the evaluations for the cross-cut categories. Thirdly, cognitive operation of re-categorize the cross-cut categories increased the evaluation for the reassembled simple categories. Finally, when the categorizations included the participants' own ethnic group, the reversed effects of the cognitive operations of cross-categorization and re-categorization were obtained.
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