Partisan sharing: facebook evidence and societal consequences
Partisan sharing: facebook evidence and societal consequences
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党派分享：Facebook 证据和社会后果
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
J. Crowcroft
中科院分区：
文献类型：
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作者：
Jisun An;D. Quercia;J. Crowcroft
选择性暴露假说认为，人们会寻找支持他们观点的信息，避开与他们的信念相冲突的信息，这对我们的社会产生了负面影响。最近，很少有研究人员发现社交媒体选择性曝光的反证据：用户会接触到政治上多样化的文章。不过，目前还没有研究过暴露后会发生什么，尤其是个体对这种暴露的反应。用户可能会接触到各种各样的文章，但只分享有党派倾向的文章。为了验证这一点，我们研究了Facebook上的党派分享：用户主要分享志同道合的新闻文章，避免冲突的新闻文章的趋势。我们验证了四个主要假设。也就是说，党派分享是否存在：1)根本不存在；2)个体之间的变化（例如，取决于他们对政治的兴趣）；3)随时间的变化（例如，在选举前后）；4)根据主题的感知重要性而变化。我们确实发现了党派共享的有力证据。为了测试它在现实世界中是否有任何影响，我们为BBC一个流行政治节目的观众构建了一个网络应用程序，结果是一个涉及70多人的对照实验。根据他们分享的内容和调查数据，我们发现党派分享有负面影响：扭曲了对现实的感知。然而，我们也确实发现了党派分享的积极方面：它与对政治更了解的人有关，因为他们更有可能在大选中投票。
The hypothesis of selective exposure assumes that people seek out information that supports their views and eschew information that conflicts with their beliefs, and that has negative consequences on our society. Few researchers have recently found counter evidence of selective exposure in social media: users are exposed to politically diverse articles. No work has looked at what happens after exposure, particularly how individuals react to such exposure, though. Users might well be exposed to diverse articles but share only the partisan ones. To test this, we study partisan sharing on Facebook: the tendency for users to predominantly share like-minded news articles and avoid conflicting ones. We verified four main hypotheses. That is, whether partisan sharing: 1) exists at all; 2) changes across individuals (e.g., depending on their interest in politics); 3) changes over time (e.g., around elections); and 4) changes depending on perceived importance of topics. We indeed find strong evidence for partisan sharing. To test whether it has any consequence in the real world, we built a web application for BBC viewers of a popular political program, resulting in a controlled experiment involving more than 70 individuals. Based on what they share and on survey data, we find that partisan sharing has negative consequences: distorted perception of reality. However, we do also find positive aspects of partisan sharing: it is associated with people who are more knowledgeable about politics and engage more with it as they are more likely to vote in the general elections.