Philipp Lorenz-Spreen
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View article: Disentangling participation in online political discussions with a collective field experiment
Disentangling participation in online political discussions with a collective field experiment Open
Online political discussions are often dominated by a small group of active users, while most remain silent. This visibility gap can distort perceptions of public opinion and fuel polarization. Using a collective field experiment on Reddit…
View article: Disentangling participation in online political discussions with a collective field experiment
Disentangling participation in online political discussions with a collective field experiment Open
Online political discussions are often dominated by a small group of active users, while most remain silent. This visibility gap can distort perceptions of public opinion and fuel polarization. Using a collective field experiment on Reddit…
View article: How German members of parliament debate wealth taxation on social media
How German members of parliament debate wealth taxation on social media Open
Private wealth in Germany is highly concentrated and often inherited rather than earned. This concentration reinforces unequal distributions of political influence, income, and other capacities linked to wealth. Although public support for…
View article: Diverging associations of traditional versus social media with government trust
Diverging associations of traditional versus social media with government trust Open
Trust in government and institutions is a cornerstone of functioningrepresentative democracies. While previous research documentednegative associations between social media use as a news source andinstitutional trust, temporal dynamics and…
View article: Diverging associations of traditional versus social media with government trust
Diverging associations of traditional versus social media with government trust Open
Trust in government and institutions is a cornerstone of functioningrepresentative democracies. While previous research documentednegative associations between social media use as a news source andinstitutional trust, temporal dynamics and…
View article: Simple changes to content curation algorithms affect the beliefs people form in a collaborative filtering experiment
Simple changes to content curation algorithms affect the beliefs people form in a collaborative filtering experiment Open
Content-curating algorithms provide a crucial service for social media users by surfacing relevant content, but they can also bring about harms when their objectives are misaligned with user values and welfare. Yet, potential behavioral co…
View article: Moving towards informative and actionable social media research
Moving towards informative and actionable social media research Open
Social media is nearly ubiquitous in modern life, raising concerns about its societal impacts-from mental health and polarization to violence and democratic disruption. Yet research on its causal effects remains inconclusive: observational…
View article: The effects of an experimental attention economy on the production and consumption of news headlines
The effects of an experimental attention economy on the production and consumption of news headlines Open
Online news headlines play a vital role both in news production and news consumption: Readers rely on headlines to keep up-to-date and choose what to read. Producers, on the other hand, write headlines to attract attention and clicks in th…
View article: A Collective Field Experiment Disentangling Participation in Online Political Discussions
A Collective Field Experiment Disentangling Participation in Online Political Discussions Open
Online discussions are often dominated by a small group of active users, while the majorityremain silent. To investigate what differentiates active from silent users, whether participation inequality can be mitigated, and the downstream ef…
View article: The evolution of online news headlines
The evolution of online news headlines Open
As the written word has moved online, new technological affordances and pressures – such as accelerated cycles of production and consumption – have changed how news headlines are produced and selected. Previous literature has linked certai…
View article: Author Correction: Public attitudes towards social media field experiments
Author Correction: Public attitudes towards social media field experiments Open
View article: People in 26 countries prefer individual control to commercial or governmental control over online choice architectures
People in 26 countries prefer individual control to commercial or governmental control over online choice architectures Open
Large online platforms design online environments that steer user attention, raising concerns about a loss of user agency, autonomy and even manipulation. Yet little is known about who users themselves think should control their online env…
View article: People in 26 countries prefer individual control to commercial or governmental control over online choice architectures
People in 26 countries prefer individual control to commercial or governmental control over online choice architectures Open
Large online platforms design online environments that steer user attention, raising concerns about a loss of user agency, autonomy and even manipulation. Yet little is known about who users themselves think should control their online env…
View article: Susceptibility to online misinformation: A systematic meta-analysis of demographic and psychological factors
Susceptibility to online misinformation: A systematic meta-analysis of demographic and psychological factors Open
Nearly five billion people use and receive news through social media and there is widespread concern about the negative consequences of misinformation on social media (e.g., election interference, vaccine hesitancy). Despite a burgeoning b…
View article: Public attitudes towards social media field experiments
Public attitudes towards social media field experiments Open
View article: Real-time assessment of motives for sharing and creating content among highly active Twitter users
Real-time assessment of motives for sharing and creating content among highly active Twitter users Open
What motivates people to share and create content online? In real time, we linked each of N=2,762 individual posts (retweets and newly created content) with the self-reported motives from a sample of N=137 highly active US Twitter users ov…
View article: Toolbox of individual-level interventions against online misinformation
Toolbox of individual-level interventions against online misinformation Open
View article: WITHDRAWN
WITHDRAWN Open
Nearly five billion people use and receive news through social media and there is widespread concern about the negative consequences of misinformation on social media (e.g., election interference, vaccine hesitancy). Despite a burgeoning bo…
View article: The Evolution of Online News Headlines
The Evolution of Online News Headlines Open
As the written word has moved online, new technological affordances and pressures, such as accelerated cycles of production and consumption, have changed how news headlines are produced and selected. Previous literature has linked certain …
View article: How A/B testing changes the dynamics of information spreading on a social network
How A/B testing changes the dynamics of information spreading on a social network Open
A/B testing methodology is generally performed by private companies to increase user engagement and satisfaction about online features. Their usage is far from being transparent and may undermine user autonomy (e.g. polarizing individual o…
View article: Towards more ethical social media field experiments
Towards more ethical social media field experiments Open
The growing use of social media field experiments demands a rethink of current research ethics in computational social science. Here, we provide an empirical account of key user concerns and outline a number of critical discussions that ne…
View article: Simple changes to content curation algorithms affect the beliefs people form in a collaborative filtering experiment
Simple changes to content curation algorithms affect the beliefs people form in a collaborative filtering experiment Open
Content-curating algorithms provide a crucial service for social media users by surfacing relevant content, but they can also bring about harms when their objectives are misaligned with user values and welfare. Yet, potential behavioral co…
View article: Simple changes to content curation algorithms affect the beliefs people form in a collaborative filtering experiment
Simple changes to content curation algorithms affect the beliefs people form in a collaborative filtering experiment Open
Content-curating algorithms provide a crucial service for social media users by surfacing relevant content, but they can also bring about harms when their objectives are misaligned with user values and welfare. Yet, potential behavioral an…
View article: A framework for promoting online prosocial behavior via digital interventions
A framework for promoting online prosocial behavior via digital interventions Open
Digital interventions for prosocial behavior are increasingly being studied by psychologists. However, academic findings remain largely underutilized by practitioners. We present a practical review and framework for distinguishing three ca…
View article: The Online Misinformation Engagement Framework
The Online Misinformation Engagement Framework Open
Research on online misinformation has evolved rapidly, but organizing its results and identifying open research questions is difficult without a systematic approach. We present the Online Misinformation Engagement Framework, which classifi…
View article: Modelling opinion dynamics under the impact of influencer and media strategies
Modelling opinion dynamics under the impact of influencer and media strategies Open
View article: An Accuracy Self-Nudge to Reduce Misinformation Sharing Online
An Accuracy Self-Nudge to Reduce Misinformation Sharing Online Open
Self-nudging interventions enable people to redesign their own environment to encourage choices that are in line with their goals and preferences. Self-nudging is particularly relevant online, where users’ autonomy is endangered by decepti…
View article: Perspectives on adaptive dynamical systems
Perspectives on adaptive dynamical systems Open
Adaptivity is a dynamical feature that is omnipresent in nature, socio-economics, and technology. For example, adaptive couplings appear in various real-world systems, such as the power grid, social, and neural networks, and they form the …
View article: Artificial Intelligence can facilitate selfish decisions by altering the appearance of interaction partners
Artificial Intelligence can facilitate selfish decisions by altering the appearance of interaction partners Open
The increasing prevalence of image-altering filters on social media and video conferencing technologies has raised concerns about the ethical and psychological implications of using Artificial Intelligence (AI) to manipulate our perception…
View article: Smartphone-Nutzung reduzieren durch one sec
Smartphone-Nutzung reduzieren durch one sec Open
Übermäßige Smartphone-Nutzung kann negative Effekte auf die physische und mentale Gesundheit haben. Dabei kommt es allerdings darauf an, ob die Nutzung automatisch oder geplant und bewusst ist. Die App one sec interveniert beim Öffnen von …