Answer:
working or competing with other people doing the same task.
Step-by-step explanation:
Norman Triplett was one of the famous psychologists at "Indiana University", and he has conducted a famous experiment on the "social facilitation effect".
Social facilitation: The term "social facilitation" is described as the propensity of an individual to perform better when he or she is being watched or when he or she is competing with someone else while doing the same task.
The given statement in the question above represents the concept of social facilitation.