Exhibit 12-3 Suppose a Researcher Measured the Test Scores of College

Multiple Choice

Exhibit 12-3 Suppose a researcher measured the test scores of college students who were taught chemistry in the presence of one type of music (country,rock,or classical) in one of three different colored classrooms (red,green,or blue) .
Refer to Exhibit 12-3.The dependent variable is

A) chemistry test scores
B) classroom color
C) music
D) attitude toward school