Marc's ability to throw a football farther when his friends are watching than when.
he is alone describes the phenomenon of social loafing.

Question

Quizplus · Accepted Answer

The described phenomenon is actually social facilitation, where the presence of others enhances performance. Social loafing is the opposite phenomenon, where individuals exert less effort when working in a group than when working alone.

Marc's Ability to Throw a Football Farther When His Friends