What happens when news aggregators tailor their newsfeeds to include partisan news aimed at users with a known party preference? Relying on a custom-made news portal featuring real, timely articles, this study examines the influence of partisan news sources on participant headline exposure, clicks on news stories to read, and perceptions about the portal’s ability to reliably and comprehensively provide the most important news of the day. Over a period of 12 days, participants preferring either the Republican or Democratic party were randomly assigned to newsfeeds containing increased dosages of real news articles from sources supportive of the participant’s preferred party. Results demonstrate that partisan personalization can benefit a news aggregator by increasing usage and perceptions of its quality, while potentially harming society by decreasing attention to high-quality mainstream sources.

中文翻译：

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党派个性化在新闻门户实验中的影响

当新闻聚合器定制他们的新闻源以包含针对具有已知党派偏好的用户的党派新闻时会发生什么？本研究依赖于一个以真实、及时的文章为特色的定制新闻门户网站，研究了党派新闻来源对参与者标题曝光、点击新闻故事阅读的影响，以及对门户网站可靠、全面地提供最重要新闻的能力的看法. 当天。在 12 天的时间里，偏爱共和党或民主党的参与者被随机分配到包含更多真实新闻文章的新闻源，这些文章来自支持参与者首选政党的来源。结果表明，党派个性化可以通过增加对其质量的使用和感知来使新闻聚合器受益，