Asked by Sabrin Yassin on Mar 10, 2024
Verified
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
Exam Scores
Numerical outcomes or grades resulting from a student’s performance on an academic test or examination.
Room Lighting
The arrangement and type of lighting sources in a space, affecting visibility, mood, and aesthetic appeal.
Dependent Variable
The variable in an experiment that is expected to change in response to manipulations of the independent variable.
- Distinguish between independent and dependent variables and understand their functions in a research context.
Verified Answer
CJ
Christian JonesMar 10, 2024
Final Answer :
B
Explanation :
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.
Learning Objectives
- Distinguish between independent and dependent variables and understand their functions in a research context.