Darrin is a good piano player. If he is alone, he gets distracted and makes mistakes. At a recital with strangers, he also makes mistakes. His best performance is typically when family and friends are nearby. This is an example of the Yerkes-Dodson law.
The Yerkes-Dodson law is an empirical relationship between pressure and performance that was first developed in 1908 by psychologists Robert M. Yerkes and John Dillingham Dodson. The law states that physiological or mental arousal increases performance, but only to a point.
The Yerkes-Dodson law is a mathematical model that describes how stress affects task performance. It implies that peak performance is achieved with an intermediate level of stress, or arousal.
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