In the equation S = k log I, the I refers to __________.

A) the psychological magnitude or subjective magnitude of a stimulus
B) the physical intensity of the stimulus
C) the constant whose value depends on the value of the Weber fraction
D) none of the above

Physical Intensity

Physical intensity refers to the magnitude or force of physical actions, often measured in terms of energy or effort exerted.

Weber Fraction

A constant proportion in Weber's Law that describes the smallest change in a stimulus that can be detected as a proportional part of the original stimulus.

Psychological Magnitude

The quantifiable aspect of a psychological factor, such as the intensity of a sensation, emotion, or perception.