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DrBranch Would Like to Study the Relationship Between Room Lighting

Question 334

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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

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