Sunday, January 26, 2020

It Happened to a Friend of a Friend: Inaccurate Source Reporting in Rumor Diffusion

Altay, Sacha, Nicolas Claidière, and Hugo Mercier. 2020. “It Happened to a Friend of a Friend: Inaccurate Source Reporting in Rumor Diffusion.” PsyArXiv. January 25. doi:10.31234/osf.io/5czka

Abstract: Culturally successful rumors are commonly attributed to a credible friend of a friend, but little is known about how this sourcing can boost rumors’ propagation. In four online experiments (N = 2024) we found that attribution to a credible friend of a friend increased a rumor’s perceived plausibility, and participants’ willingness to share it. Moreover, the credible friend of a friend attribution remained stable across multiple transmissions, instead of the number of friends mentioned increasing with each transmission. The main alternative was to only mention a friend (without credibility attribution). Even though this latter alternative dominated linear transmission chains, introducing a degree of redundancy allows the credible friend of a friend to persist or dominate. We suggest that the preference for attributing rumors to a credible friend of a friend reflects reputation management considerations.

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