Dr.Branch would like to study the relationship between room lighting and college students' test performance.He randomly assigns college students to two groups.The first group takes an exam in a dimly lit room and the second group takes the same exam in a regularly lit room.Who or what is the dependent variable?
A) room lighting
B) exam scores
C) random assignment
D) Dr.Branch

Question

Quizplus · Accepted Answer

The dependent variable is the variable that is being measured and is expected to change in response to the independent variable. In this case, the independent variable is room lighting and the dependent variable is exam scores, as Dr. Branch wants to see if there is a relationship between the two. Therefore, the best choice is B, as exam scores are the variable being measured and expected to change depending on room lighting.

DrBranch Would Like to Study the Relationship Between Room Lighting