How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data

Social media platforms are often accused of disproportionally exposing their users to like-minded opinions, thereby fueling political polarization. However, empirical evidence of this causal relationship is inconsistent at best. One reason could be that many previous studies were unable to separate...

Full description

Bibliographic Details
Main Authors: Ole Kelm, Tim Neumann, Maike Behrendt, Markus Brenneis, Katharina Gerl, Stefan Marschall, Florian Meißner, Stefan Harmeling, Gerhard Vowe, Marc Ziegele
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Computers in Human Behavior Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2451958823000763
_version_ 1797401665426423808
author Ole Kelm
Tim Neumann
Maike Behrendt
Markus Brenneis
Katharina Gerl
Stefan Marschall
Florian Meißner
Stefan Harmeling
Gerhard Vowe
Marc Ziegele
author_facet Ole Kelm
Tim Neumann
Maike Behrendt
Markus Brenneis
Katharina Gerl
Stefan Marschall
Florian Meißner
Stefan Harmeling
Gerhard Vowe
Marc Ziegele
author_sort Ole Kelm
collection DOAJ
description Social media platforms are often accused of disproportionally exposing their users to like-minded opinions, thereby fueling political polarization. However, empirical evidence of this causal relationship is inconsistent at best. One reason could be that many previous studies were unable to separate the effects caused by individual exposure to like-minded content from the effects caused by the algorithms themselves. This study presents results from two quasi-experiments in which participants were exposed either to algorithmically selected or randomly selected arguments that were either in line or in contrast with their attitudes on two different topics. The results reveal that exposure to like-minded arguments increased participants’ attitude polarization and affective polarization more intensely than exposure to opposing arguments. Yet, contrary to popular expectations, these effects were not amplified by algorithmic selection. Still, for one topic, exposure to algorithmically selected arguments led to slightly stronger attitude polarization than randomly selected arguments.
first_indexed 2024-03-09T02:13:21Z
format Article
id doaj.art-15425f7f8b8b46ebb0941ac2e7af2750
institution Directory Open Access Journal
issn 2451-9588
language English
last_indexed 2024-03-09T02:13:21Z
publishDate 2023-12-01
publisher Elsevier
record_format Article
series Computers in Human Behavior Reports
spelling doaj.art-15425f7f8b8b46ebb0941ac2e7af27502023-12-07T05:29:48ZengElsevierComputers in Human Behavior Reports2451-95882023-12-0112100343How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel dataOle Kelm0Tim Neumann1Maike Behrendt2Markus Brenneis3Katharina Gerl4Stefan Marschall5Florian Meißner6Stefan Harmeling7Gerhard Vowe8Marc Ziegele9Institute of Social Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, Germany; Corresponding author. Institute of Social Sciences, Heinrich Heine University Duesseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany.Institute of Social Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, GermanyInstitute of Computer Science, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, GermanyInstitute of Computer Science, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, GermanyInstitute of Social Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, GermanyInstitute of Social Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, GermanyMacromedia University of Applied Science, Richmodstraße 10, 50667, Cologne, GermanyFaculty of Computer Science, TU Dortmund University, August-Schmidt-Straße 1, 44227, Dortmund, GermanyInstitute of Social Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, Germany; Department of Ethical, Legal & Social Issues, Center for Advanced Internet Studies, Universitätsstraße 104, 44799, Bochum, GermanyInstitute of Social Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40235, Düsseldorf, GermanySocial media platforms are often accused of disproportionally exposing their users to like-minded opinions, thereby fueling political polarization. However, empirical evidence of this causal relationship is inconsistent at best. One reason could be that many previous studies were unable to separate the effects caused by individual exposure to like-minded content from the effects caused by the algorithms themselves. This study presents results from two quasi-experiments in which participants were exposed either to algorithmically selected or randomly selected arguments that were either in line or in contrast with their attitudes on two different topics. The results reveal that exposure to like-minded arguments increased participants’ attitude polarization and affective polarization more intensely than exposure to opposing arguments. Yet, contrary to popular expectations, these effects were not amplified by algorithmic selection. Still, for one topic, exposure to algorithmically selected arguments led to slightly stronger attitude polarization than randomly selected arguments.http://www.sciencedirect.com/science/article/pii/S2451958823000763AlgorithmsPolarizationOnline experimentsFilter bubblePanel dataGermany
spellingShingle Ole Kelm
Tim Neumann
Maike Behrendt
Markus Brenneis
Katharina Gerl
Stefan Marschall
Florian Meißner
Stefan Harmeling
Gerhard Vowe
Marc Ziegele
How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data
Computers in Human Behavior Reports
Algorithms
Polarization
Online experiments
Filter bubble
Panel data
Germany
title How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data
title_full How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data
title_fullStr How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data
title_full_unstemmed How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data
title_short How algorithmically curated online environments influence users’ political polarization: Results from two experiments with panel data
title_sort how algorithmically curated online environments influence users political polarization results from two experiments with panel data
topic Algorithms
Polarization
Online experiments
Filter bubble
Panel data
Germany
url http://www.sciencedirect.com/science/article/pii/S2451958823000763
work_keys_str_mv AT olekelm howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT timneumann howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT maikebehrendt howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT markusbrenneis howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT katharinagerl howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT stefanmarschall howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT florianmeißner howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT stefanharmeling howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT gerhardvowe howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata
AT marcziegele howalgorithmicallycuratedonlineenvironmentsinfluenceuserspoliticalpolarizationresultsfromtwoexperimentswithpaneldata