Dylan is interested in finding out how sensitive his roommate is to sound.While he is watching TV,Dylan gradually turns up the volume on his stereo.Over the course of several days,Dylan does this a number of times and each time records the volume at which his roommate complains.This experiment may be considered a study of _____,and the independent variable is the volume _____.
A)psychometrics;at which the roommate complains
B)psychometrics;on the stereo
C)psychophysics;at which the roommate complains
D)psychophysics;on the stereo

Question

Quizplus · Accepted Answer

This experiment is a study of psychophysics, which investigates the relationship between physical stimuli and the sensations and perceptions they produce. The independent variable, which is manipulated by Dylan, is the volume on the stereo.

Dylan Is Interested in Finding Out How Sensitive His Roommate