A method whereby an observer controls the level of the stimulus and sets it at the perceptual threshold is known as the method of ______.
A)adjustment
B)constant stimuli
C)thresholds
D)limits

Question

Quizplus · Accepted Answer

The method of adjustment involves the observer controlling the level of the stimulus and adjusting it until it is perceived at the threshold level. The other methods listed (constant stimuli, thresholds, and limits) do not involve the observer actively controlling the level of the stimulus in this way.

A Method Whereby an Observer Controls the Level of the Stimulus