Stevens' Power Law is a basic principle of psychophysics that states that the perceived intensity of a stimulus is proportional to its physical magnitude raised to an exponent. There are several synonyms for this concept, including the Stevens Power Function, the Power Function, and the Power Law of Sensory Magnitude. Some researchers use the term Stevens' Law interchangeably with the Power Law, while others distinguish between the two based on their scientific context. No matter the name attributed to this principle, it remains a crucial tool for understanding how the human perception of different stimuli, such as sound, color, or brightness, functions.
