Which statement about arousal and performance is incorrect?

• A. Moderate arousal can enhance performance
• B. Too little arousal can impair performance
• C. Too much arousal can impair performance
• D. Arousal level has no effect on performance

Answer: (D)

Arousal affects how well we perform, and the relationship is often described as an inverted-U. As arousal increases from low to a moderate level, performance typically improves because alertness, attention, and readiness rise. If arousal becomes too high, performance usually declines due to increased anxiety, muscle tension, and distractibility that can disrupt motor control and focus. So the statement that arousal level has no effect on performance is incorrect because real-world and research evidence show that arousal shifts influence how well tasks are completed. The idea that moderate arousal can enhance performance, that too little can impair, and that too much can impair all fit with this pattern.