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AP® Psychology

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Let's Sing Happy Birthday Together

APPSY-KR7Y1B

The entire office is singing "Happy Birthday" to Maxine. Roger is moving his lips, but not actually singing. Because there are 32 people already singing, Roger did not feel the need to sing out loud. This group phenomenon is called

A

social norms.

B

social facilitation.

C

social loafing.

D

cognitive dissonance.

E

the bystander effect.