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Data for this longitudinal study were collected from over 2000 White, Asian, Latino, and African American college students. Results indicated that students who exhibited more ingroup bias and intergroup anxiety at the end of their first year of college had fewer outgroup friends and more ingroup friends during their second and third years of college, controlling for pre-college friendships and other background variables. In addition, beyond these effects of prior ethnic attitudes and orientations on friendship choices, those with more outgroup friendships and fewer ingroup friendships during their second and third years of college showed less ingroup bias and intergroup anxiety at the end of college, controlling for the prior attitudes, pre-college friendships, and background variables. Results are discussed in terms of the contact hypothesis.
Levin et al. (Wed,) studied this question.