An administrator believes that the placement of motivational posters on the walls in classrooms of academic buildings will lead
to increased GPAs at his school. To test his theory, he randomly assigns certain classrooms within the College of Liberal Arts and Sciences to have the posters, while others do not. None of the remaining four academic colleges have any posters placed in their classrooms. What is the independent variable in this study?
In one experiment, the independent variable is one that can be measured, measured, and modified without its outcome depending on another variable. In other words, the independent variable is one that allows itself to be manipulated by the investigator. Unlike the dependent variable, which is a variable whose result depends on the manipulation of the independent variable. Based on this, we can state that in the study shown in the question above, the independent variable is the Classroom wall hangings.
