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Intergroup cooperation and competition were compared to determine their impact on cross-ethnic relationships. We assigned 48 sixth-grade students to conditions stratifying for minority status, ability, and sex. They participated in a study for 55 min a day for 10 instructional days. The results indicated that more positive cross-ethnic relationships were promoted by intergroup cooperation than by intergroup competition.
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Johnson et al. (1985) studied this question.
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