When people or roaches undertake a difficult task, the presence of others __________ performance; when they undertake a simple task, the presence of others __________ performance.
A) enhances; impairs
B) diminishes; has no effect on
C) has no effect on; enhances
D) impairs; enhances

Question

Quizplus · Accepted Answer

The presence of others tends to impair performance on difficult tasks due to increased pressure and distraction, but enhances performance on simple tasks due to increased motivation and arousal, a phenomenon known as social facilitation.

When People or Roaches Undertake a Difficult Task, the Presence