Data Set 1-9: Julia and Davi conducted a study of 74 fifth grade students who were randomly assigned to groups. One group listened to pop-rock music, a second heard easy-listening music, and a third heard no music. While the music (or no music) was going on, students read a short story. Later the students took a test that measured their comprehension of the short story. (The easy-listening group performed best.)
-In Data Set 1-9, the scores of the 74 students on the comprehension test are
A) the independent variable
B) the dependent variable
C) an extraneous variable
D) a qualitative variable.

Question

Quizplus · Accepted Answer

The scores on the comprehension test are the dependent variable because they are the outcomes being measured and are expected to change in response to the different types of music exposure (the independent variable).

Data Set 1-9: Julia and Davi Conducted a Study of 74