This research investigates the extent to which the personality trait of Openness-to-Experience can protect individuals from living in personal echo chambers that create and reinforce a narrow view on the world. Analyses of 2 large-scale data sets with over 80,000 participants and more than 40,000,000 behavioral observations demonstrate that individuals scoring high on Openness show higher variability in the psychological profiles associated with their personal interests-a novel concept termed psychological interest diversity. Study 1 examines the Facebook profiles of 57,185 users to demonstrate that a person's Openness level predicts the degree to which the pages they like are diverse in the political ideologies, personal values, and personality traits of their followers. Study 2 replicates the findings of Study 1 using over 28,000,000 GPS-tracked event attendances collected via people's smartphones. Specifically, the results show that individuals (N = 22,953) with higher levels of Openness also show higher levels of psychological interest diversity in the events they attend, and that this effect is incremental to county-level variation in psychological interest diversity. The findings empirically support the theoretical conceptualization of Openness as a preference for variety and exploration and corroborate the role of personal dispositions in the creation of personal echo chambers. The discussion highlights the need to further explore psychological interest diversity as the initial basis of algorithmic filter bubbles-for example, recommendation systems or targeted advertising-which further amplify and reinforce existing interests and preferences. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

中文翻译：

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个人回声室：对体验的开放性与大规模行为数据中更高水平的心理兴趣多样性有关。

这项研究调查了开放体验的人格特质在多大程度上可以保护个人免于生活在个人回音室中，从而创造和加强对世界的狭隘观点。对超过 80,000 名参与者和超过 40,000,000 次行为观察的 2 个大规模数据集的分析表明，在开放性方面得分高的个人在与其个人兴趣相关的心理特征方面表现出更高的可变性——这是一个被称为心理兴趣多样性的新概念。研究 1 检查了 57,185 名用户的 Facebook 个人资料，以证明一个人的开放程度可以预测他们喜欢的页面在其追随者的政治意识形态、个人价值观和个性特征方面的多样化程度。研究 2 使用超过 28,000 个重复研究 1 的结果，通过人们的智能手机收集 000 个 GPS 跟踪的活动出席情况。具体而言，结果表明，具有较高开放性水平的个人（N = 22,953）在他们参加的活动中也表现出较高水平的心理兴趣多样性，并且这种影响是对县级心理兴趣多样性差异的增量。研究结果从经验上支持了开放性的理论概念化，即对多样性和探索的偏好，并证实了个人性格在创造个人回音室中的作用。讨论强调需要进一步探索心理兴趣多样性作为算法过滤气泡的初始基础——例如，推荐系统或有针对性的广告——进一步放大和加强现有的兴趣和偏好。