Nboth social facilitation and social impairment, the key factor is

In both social facilitation and social impairment, the key factor is arousal.

Both Social Facilitation and Social Impairment are opposite of each other yet these two are correlated through arousal. Social facilitation may occur when someone is aroused through encouragement from other people, and social impairment may also occur when someone is aroused by being ridiculed by other people.

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