In the equation S = k log I, the k 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

Weber Fraction

A concept in psychophysics that describes the proportionate relationship between the magnitude of a physical stimulus and its perceptible increment needed to detect a difference.

Psychological Magnitude

The perceived size, intensity, or importance of a psychological process or stimulus, often related to how individuals assess and experience various psychological phenomena.

Physical Intensity

The magnitude or strength of a physical quantity or phenomena, such as light, sound, or exercise.