Which statement best describes the Inverted U Hypothesis?

• A. Arousal has no effect
• B. Performance improves with arousal up to an optimal point, then declines
• C. There is no relationship
• D. Performance always improves with arousal

Answer: (B)

Arousal and performance follow an inverted-U pattern: as arousal increases, performance improves up to an optimal point, then declines if arousal becomes too high. This means being a little aroused can help you focus and act more quickly, but beyond a certain level, anxiety and tension interfere with precision and control. The peak level of arousal isn’t the same for every task—simple, well-practiced tasks can tolerate higher arousal, while complex or novel tasks require more calm to maintain accuracy. In practice, aim for a moderate, controlled level of arousal to hit that sweet spot where attention and motor readiness are matched to the task. Statements that say arousal has no effect, or that there’s no relationship, or that performance always improves with arousal, don’t fit because performance actually rises and then falls as arousal passes the optimal point.