In the context of psychophysics, what is a key characteristic of the Method of Constant Stimuli?

The Method of Constant Stimuli is characterized by the use of a variety of stimulus intensities presented in a random order to the participant. This randomization helps to minimize any biases that might affect a subject's perception of the stimuli. By presenting stimuli in this way, researchers can gather more reliable and valid data regarding thresholds for detection or difference, as participants cannot anticipate the next stimulus based on a fixed pattern. This method contrasts with others, such as the Method of Limits or Method of Adjustment, which involve more structured or sequential approaches to presenting stimuli.

In psychophysics, the focus of the Method of Constant Stimuli is on accurately measuring how changes in the intensity of stimuli affect perception, allowing researchers to create a psychometric function that illustrates the relationship between stimulus intensity and sensory experience. Thus, random ordering is a crucial characteristic, helping to eliminate order effects and provide a clearer picture of perceptual thresholds.