The Extended Contact Hypothesis: A Meta-Analysis on 20 Years of Research

@article{Zhou2019TheEC,
  title={The Extended Contact Hypothesis: A Meta-Analysis on 20 Years of Research},
  author={Shelly Zhou and Elizabeth Page‐Gould and Arthur Aron and Anne Moyer and Miles Hewstone},
  journal={Personality and Social Psychology Review},
  year={2019},
  volume={23},
  pages={132 - 160}
}
According to the extended contact hypothesis, knowing that in-group members have cross-group friends improves attitudes toward this out-group. This meta-analysis covers the 20 years of research that currently exists on the extended contact hypothesis, and consists of 248 effect sizes from 115 studies. The aggregate relationship between extended contact and intergroup attitudes was r = .25, 95% confidence interval (CI) = [.22, .27], which reduced to r = .17, 95% CI = [.14, .19] after removing… Expand

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