Social media and internet not cause of political polarization, new research suggests

While the internet is of course the home of social media, it is also a hub of other media choices. These include online news websites and links to print newspapers and magazines, as well as offline media such as TV and radio platforms. Many of our conversations with friends and family also take place online, via our social media and email platforms.

Using a random sample of adult internet users in the UK, researchers at the Oxford Internet Institute and the University of Ottawa examined people's media choices, and how much they influenced their interaction with echo chambers, against six key variables: gender, income, ethnicity, age, breadth of media use and political interest. The findings reveal that rather than encouraging the use and development of echo chambers, the breadth of multimedia available actually makes it easier for people to avoid them.

Dr Grant Blank, co-author and research fellow at the Oxford Internet Institute, said: "Whatever the causes of political polarisation today, it is not social media or the internet. If anything, most people use the internet to broaden their media horizons. We found evidence that people actively look to confirm the information that they read online, in a multitude of ways. They mainly do this by using a search engine to find offline media and validate political information. In the process they often encounter opinions that differ from their own and as a result whether they stumbled across the content passively or use their own initiative to search for answers while double checking their "facts," some changed their own opinion on certain issues." The research shows that respondents used an average of four different media sources, and had accounts on three different social media platforms. The more media outlets people used, the more they tended to avoid echo chambers.

While age, income, ethnicity nor gender were found to significantly influence the likelihood of being in an echo chamber, political interest significantly did. Those with a keen political interest were most likely to be opinion leaders who others turn to for political information. Compared with the less politically inclined, these people were found to be media junkies, who consumed political content wherever they could find it, and as a result of this diversity they were less likely to be in an echo chamber.

Dr Elizabeth Dubois, co-author and Assistant Professor at the University of Ottawa, said: "Our results show that most people are not in a political echo chamber. The people at risk are those who depend on only a single medium for political news and who are not politically interested: about 8% of the population. However, because of their lack of political engagement, their opinions are less formative and their influence on others is likely to be comparatively small."