An administrator believes that the placement of motivational posters on the walls in classrooms of academic buildings will lead to increased grade-point averages at his school.To test his theory,in one of the academic buildings he randomly assigns certain classrooms to have the posters while others do not.None of the remaining four buildings on campus have any posters placed in their classrooms.What is the independent variable in this study?
A)Classroom wall hangings
B)Gender of the student
C)Academic institution
D)Grade-point average

Question

Quizplus · Accepted Answer

The independent variable is the variable that is being manipulated or changed in the study to see if it has an effect on the dependent variable, which is the variable being measured. In this case, the independent variable is whether or not motivational posters are placed on the walls in certain classrooms, while the dependent variable is the grade-point averages of students in those classrooms. Therefore, choice A, classroom wall hangings, is the correct answer.

An Administrator Believes That the Placement of Motivational Posters on the Walls