Evidence map›Paper›PMID 39507048›Full record

ArticlePNAS nexus2024

Unveiling the hidden agenda: Biases in news reporting and consumption.

Alessandro Galeazzi, Antonio Peruzzi, Emanuele Brugnoli, Marco Delmastro, Fabiana Zollo

Abstract readNews
In one paragraph

Article in PNAS nexus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Article
  3. The role of evidence-based medicine in the media: misinformation and the COVID-19 lesson.European respiratory review : an official journal of the European Respiratory Society · 2025
    Article
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Alessandro GaleazziDepartment of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, 30172 Venice, Italy.ORCID https://orcid.org/0000-0001-6859-0391
Antonio PeruzziDepartment of Economics, Ca' Foscari University of Venice, 30121 Venice, Italy.ORCID https://orcid.org/0000-0001-8865-943X
Emanuele BrugnoliSony Computer Science Laboratories, 00184 Rome, Italy.ORCID https://orcid.org/0000-0002-5342-3184
Marco DelmastroDepartment of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, 30172 Venice, Italy.ORCID https://orcid.org/0000-0002-8527-3117
Fabiana ZolloDepartment of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, 30172 Venice, Italy.ORCID https://orcid.org/0000-0002-0833-5388

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recognizing the presence and impact of news outlets' biases on public discourse is a crucial challenge. Biased news significantly shapes how individuals perceive events, potentially jeopardizing public and individual wellbeing. In assessing news outlet reliability, the focus has predominantly centered on narrative bias, sidelining other biases such as selecting events favoring specific perspectives (selection bias). Leveraging machine learning techniques, we have compiled a six-year dataset of articles related to vaccines, categorizing them based on narrative and event types. Employing a Bayesian latent space model, we quantify both selection and narrative biases in news outlets. Results show third-party assessments align with narrative bias but struggle to identify selection bias accurately. Moreover, extreme and negative perspectives attract more attention, and consumption analysis unveils shared audiences among ideologically similar outlets, suggesting an echo chamber structure. Quantifying news outlets' selection bias is crucial for ensuring a comprehensive representation of global events in online debates.

Indexed as

media biasesmisinformationnews consumptionnews productionsocial media

Identifiers

PMID39507048
PMCPMC11538591

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.