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 independent variable?
A) room lighting
B) exam scores
C) random assignment
D) Dr.Branch

Question

Quizplus · Accepted Answer

The independent variable is the variable being manipulated, which in this case is the room lighting. The dependent variable is the variable being measured, which is the college students' test performance.

DrBranch Would Like to Study the Relationship Between Room Lighting