Tuesday, November 9, 2021

Like-minded political discussion are rare, and the readiness to engage in them is more strongly determined by personality than by ideology or the means of communication

The Role of Personality in Political Talk and Like-Minded Discussion. Shelley Boulianne, Karolina Koc-Michalska. The International Journal of Press/Politics, March 17, 2021. https://doi.org/10.1177/1940161221994096

Abstract: Political discussion is a key mechanism for the development of reasoned opinions and political knowledge, but online political discussion has been characterized as uncivil, intolerant, and/or ideologically homogeneous, which is detrimental to this development. In this paper, we examine the role of personality in various forms of political talk—online and offline—as well as like-minded discussion. Based on a 2017 survey conducted in the United Kingdom, United States, and France, we find that people who are open-minded and extraverted are more likely to engage in political talk but less likely to engage in like-minded discussion. Individuals who are older, less educated, introverted, and conscientious are more likely to find themselves in like-minded discussions, both online and on social media. Like-minded discussion is rare; personality, rather than ideology, predicts whether people engage in this form of political talk in online and offline modes. Our findings challenge the role of social media in the creation of like-minded discussion. Instead, we should look to the role of individual attributes, such as personality traits, which create a disposition that motivates the use of social media (and offline networks) to cultivate like-minded discussion.

Keywords: Big Five personality traits, political discussion, political talk, like-minded discussion, echo chamber

This paper examines how personality affects the filtering process related to political discussion. Personality impacts the propensity to discuss politics, use social media, and engage in like-minded discussion on social media. Several steps are required to understand like-minded discussion on social media: (1) consider the biases in who talks politics (81.57 percent of our pooled sample, as per Table 2), (2) consider the filtering of social media adoption (76.82 percent of our pooled sample), (3) consider the subset of people who talk politics on social media (43.99 percent of our pooled sample of social media users), and (4) consider the few people who engage in like-minded discussion (9.41 percent of a pooled sample of social media talkers). Approximately one in ten respondents engages in like-minded discussion; this incidence rate is consistent for offline and online forms. So we ask, what is the role of personality throughout this filtering process? This question is answered with our annotation of Figure 2.


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Figure 2. Summary of findings about personality and political discussion.

Note. Diagonal-dashed arrows are filtering arrows and straight arrows depict causal effects among key variables in the analysis. O = openness, C = conscientious, Ex = extraversion, A = agreeable, Es = emotional stability.

Openness impacts whether an individual talks politics online and offline and whether they use social media. The filtering process has three stages. In the first stage, people who are open-minded are more likely to talk politics (any mode). In the second stage, people who are open-minded adopt social media use. In the third stage, people who are open-minded are less likely to engage in like-minded discussion. The coefficient did not reach statistical significance at the p < .05 level. Openness has a stronger and more consistent impact than ideology. The existing literature (Table 1) features ten tests of the relationship between openness and political discussion. Of these, four tests for openness on political discussion are significant, which suggests a relationship but hardly offers conclusive results (Table 1). These other studies from the existing literature do not consider the mode of discussion and few consider personality and like-minded discussion. Yet, we offer consistent findings about the importance of openness using our pooled cross-national sample.

We find that extraversion is also important. As mentioned, the existing research features ten tests of the relationship between extraversion and political discussion of which five are significant (Table 1). Extraversion has mixed support related to political discussion in general; extraversion influences talk on social media, but not offline. However, extraversion is a strong and consistent predictor of like-minded discussion on social media and offline. In terms of understanding like-minded discussion on social media, extraversion seems to be the strongest and most consistent personality trait. We replicate this finding in the country-specific results.

Existing research (Table 1) suggests that agreeableness is important (four of ten tests are significant), yet the findings are not consistently positive or negative but rather highly divergent. In our study, agreeableness matters for social media adoption but does not offer direct effects on the likelihood of talking politics. However, as mentioned, assessing agreeableness poses challenges because this trait is strongly correlated with conscientiousness and extraversion (see prior literature review and Supplementary Information file). Correlation issues with these personality traits may pose a challenge when trying to determine their independent effects. We included all traits in our models to reflect existing research (Table 1).

Our paper distinguishes between offline discussion and online discussion through social media. Openness predicts both modes of discussion, suggesting the two modes might be combined into a single, hybrid discussion measure (Chadwick 2013). However, combining these modes would blur some important findings about social media and the role of personality in filtering social media-based discussion. In particular, extraversion and conscientiousness predict social media use, then social media-based discussion, then like-minded discussion on social media. The effects of these personality traits might disappear if the modes are combined into a single measure of political discussion as these measures do not have the same predictive value in relation to offline discussion (general). Also, age and political ideology predict online but not offline forms of discussion. Combining these modes would hide these ideological and age differences in patterns of participation. Age is a consistent predictor of online political discussion (Brundidge 2010Evans and Ulbig 2012Huber et al. 2019Kim and Baek 2018Stromer-Galley 2002). Finally, females are more likely to participate in offline political talk, but less likely to talk on social media (also see: Evans and Ulbig 2012Huber et al. 2019Stromer-Galley 2002). These gender differences would be missed in a combined measure of political discussion. All of these differences have implications with respect to the quality and representativeness of online discussion. We still have more research to do on this topic, given the low explained variance in our models as well as those models summarized in Table 1.

Like-minded discussion may have both positive and negative impacts. Mondak (2010: 115) explains that “conversations with like-minded others may offer reassurance and support, but such conversations do nothing to broaden the person's perspectives.” Discussions with people of differing viewpoints are expected to increase political tolerance (Nir 2017) and perhaps decrease attitude polarization (Grönlund et al. 2015Mutz 2006). Personality shapes the propensity to engage in homogeneous discussion networks (Hibbing et al. 2011Kim et al. 2013Mondak et al. 2010). We have contributed to scholarship by testing the role of personality in an online discussion. Our findings suggest that like-minded discussion networks cannot be solely attributed to social media use. An individual's personality affects whether they use social media (Correa et al. 2010Jenkins-Guarnieri et al. 2012Ryan and Xenos 2011) and how they use social media. People who are introverted, close-minded, and conscientious will use social media to form discussion networks where their ideas will not be challenged. Indeed, when it comes to like-minded discussion, we find that personality matters more than political ideology.

As a final note, our data are limited to self-reports about political discussion—an issue that this field of research has addressed (Wojcieszak and Mutz 2009). We do not know if people truly abstain from political discussion, nor do we have an independently verified approach to measure the frequency of political discussion. Social media trace data would help to validate the estimates about frequency. However, social media data are limited for assessing like-minded discussion, as it is difficult to determine whether two discussion partners agree or disagree with each other's social media posts. For example, on Twitter, there is a “like” button but no “dislike” button. Facebook offers more nuances, albeit the “like” button is still the most popular response and does not suggest agreement so much as acknowledgment. Ideology is sometimes used as a proxy for this disagreement, but even ideological leanings are difficult to decipher in relation to the discussion of complex policy issues, such as immigration or the economy. Surveys are a valuable tool to supplement social media trace data as people can be asked about their agreement or disagreement with the topic. Future research should consider using a mixed-methods approach with a record of political discussion (such as social media trace data) as well as a survey of personality traits, policy positions, and reports about (dis)agreement. Our survey is an important contribution to the field, which has examined self-reports of offline discussion based on surveys or online discussion using social media trace data. We bridge these two modes but come to similar conclusions. Like-minded discussion is rare; personality, rather than ideology, predicts whether people engage in this form of political talk in online and offline modes.

Prior to proposing our research hypothesis and questions, we presented the findings of existing research. Research to date is based largely on American samples, yet international scholars have used the same theoretical claims for tests based on non-U.S. samples. Existing scholarship has not addressed whether we should expect cross-national differences in the relationship between personality and political discussion. As such, we proposed a research question, rather than a hypothesis. We find consistency in the importance of extraversion predicting like-minded discussion. Extraverts are less likely to engage in like-minded discussion. We replicate existing research about cross-national differences in political talk (Nir 2012Vaccari and Valeriani 2018), but we offer new evidence about the importance of personality and perhaps culture in political discussion.

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