According to the Yerkes-Dodson law, for easy tasks the optimal arousal level is higher than for difficult tasks. Which level is optimal for easy tasks?

• A. Low
• B. Moderate
• C. High
• D. Very high

Answer: (C)

Performance follows an inverted-U pattern with arousal: as arousal rises, performance improves up to a point, but too much arousal then hurts performance. For easy tasks, you can benefit from higher arousal because these tasks rely on quick, automatic responses that are boosted by alertness and energy. The peak of the curve for simple tasks sits at a higher arousal level, so high arousal leads to the best performance. Low arousal leaves you sluggish, moderate arousal is not as effective for very easy tasks, and very high arousal can impair accuracy due to nervousness or distraction. So the optimal level for easy tasks is high.