CLEP Intro to Psychology Exam Prep

Answer: D - The smallest amount of physical energy that can reliably be sensed by a person is referred to as the absolute threshold.
Key Takeaway: An absolute threshold is the smallest amount of physical energy on your senses that you become aware of. If you have a hair brush against your forearm, the smallest amount of pressure that it exerts on your skin for you to feel it is called the absolute threshold. If your apartment has a gas leak from an oven, the smallest amount of gas that you begin to detect through your sense of smell is the absolute threshold in this case.