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OpenTrials
Completed

NCT Number: NCT05030883

The Effect of a Protective Message on Critical Evaluation of Fake News

Background: Disinformation has become an increasing societal concern, especially due to the speed that news is shared in the current digital era. In particular in the healthcare sector disinformation can lead to serious casualties, as the current COVID-19 crisis clearly shows.

Objective: The main aim of this study was to experimentally examine the effects of information about the source's and a displayed protective warning message on users' critical evaluation of news items, as well as the perception of accuracy of the news item.

Methods: A 3(unreliable versus reliable versus no identified source) x 2 (protective message: with versus without) between subject design has been conducted among 307 participants (mean age = 29 years, SD = 10.9 years).

Completed

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Tilburg School of Humanities and Digital Sciences

Tilburg, Netherlands

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Facebook user
  • older than 18
  • Dutch

Exclusion criteria

  • younger than 18 years
  • no facebook

Treatment and study plan

Source of news

Behavioral

The main intervention was the source of the news that was shown to participants

Primary outcomes

  1. Critical evaluation of source and news

    Time frame: immediately after exposure, 5 minutes

    questionnaire

Sponsors and collaborators

Lead sponsor

Tilburg University

Other

Registry information

Official study title

The Effect of Source Type and Protective Message on the Critical Evaluation of News Messages on Facebook: An Experimental Study in the Netherlands.

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Sep 1, 2021
Registry last updated
Sep 5, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.