Belief-formation impact of others depends on their persuasiveness, proximity, and number.

Evidence

According to this model, people develop their opinions in large part through their interactions with others. Furthermore, beliefs are determined through the “force” or “impact” of others, where the force is itself a function of the strength (for instance, how persuasive an individual is), the immediacy (that is, how far away in space someone is), as well as the number of the others in the environment who hold the belief. — , Rudman, Laurie A - On the Nature of…, 1909

Categorization

• DEFINE: Defines dynamic social impact theory’s three determinants: strength, immediacy, and number.
• XREF: connects to: Crowd psychology lowers individual responsibility and boosts influence susceptibility — Tim Wu, The Attention Merchants, 399