The finding that performance is related to a moderate level of arousal is best explained by which of the following theories?

• A. James-Lange theory
• B. Schachter-Singer two-factor theory
• C. Yerkes-Dodson law
• D. Cannon-Bard theory

Answer: (C)

Verified step by step guidance

1. Understand that the problem is asking which theory explains the relationship between performance and a moderate level of arousal.
2. Recall that the Yerkes-Dodson law describes how performance improves with arousal up to an optimal point, after which too much arousal can impair performance.
3. Recognize that the other theories listed (James-Lange, Schachter-Singer two-factor, Cannon-Bard) focus on different aspects of emotion and arousal, such as how emotions are experienced or processed, rather than the performance-arousal relationship.
4. Identify that the Yerkes-Dodson law specifically addresses the idea of an optimal level of arousal for peak performance, which matches the description in the problem.
5. Conclude that the Yerkes-Dodson law is the best explanation for the finding that performance is related to a moderate level of arousal.