Joey and phillip are high school students in the same class. joey imitates phillip’s stammer in front of his friends and laughs. when none of his friends comment on his imitation, joey assumes that they find phillip’s stammer funny as well.
this scenario best exemplifies the effect.

a. false consensus
b. bystander
c. group polarization
d. mere exposure

A. false consensus

Explanation:

False consensus: In psychology, the term false consensus is defined as a cognitive bias which is considered to as an attributional type in which an individual tends to overestimate the degree to which his or her beliefs, values, habits, opinions, and preferences are considered as typical and normal as compared to others.

Due to false consensus, an individual believes that the other person is more similar to him or her than the person is.

In the question above, the given scenario best exemplifies the false consensus effect.          

answer; regard the action of other people negatively;

answer; beware of exaggerated claims without supporting evidence;