Nudge-based misinformation interventions are effective in information environments with low misinformation prevalence

Area of Science:

• Social Psychology
• Information Science
• Human-Computer Interaction

Background:

• Nudge interventions are proposed as cost-effective methods to combat online misinformation.
• Existing research often uses unrealistic equal proportions of true and false information, limiting ecological validity.
• Intervention effectiveness may vary significantly with the prevalence of misinformation.

Purpose of the Study:

• To evaluate a combined accuracy and social-norm nudge intervention.
• To test the intervention's efficacy across simulated social media environments with varying misinformation proportions (50%, 20%, 12.5%).
• To provide ecologically valid evidence for nudge-based misinformation interventions.

Main Methods:

• A study with 1387 participants was conducted.
• Participants interacted within simulated social media environments.
• The intervention combined accuracy and social-norm nudges to influence information sharing behavior.

Main Results:

• The combined nudge intervention demonstrated effectiveness in improving users' sharing discernment.
• This improvement was particularly notable in conditions with lower proportions of misinformation.
• Results support the ecological validity of nudge-based strategies.

Conclusions:

• Nudge-based interventions are effective in enhancing discernment of misinformation online.
• The effectiveness is context-dependent, showing greater impact in more realistic, lower-misinformation environments.
• Findings support the deployment of nudges to mitigate misinformation spread on social media.