The relationship between various levels of arousal and effective task performance is described by

A) drive-reduction theory.
B) the Yerkes-Dodson law.
C) the hierarchy of needs theory.
D) instinct theory.

Yerkes-Dodson Law

A psychological principle stating that performance increases with arousal only up to a point, after which performance decreases.

Arousal

A physiological and psychological state of being awake, alert, and engaged, often as a response to stimuli.

Effective Task Performance

The degree to which tasks are completed successfully and efficiently, often measured against pre-established standards or goals.