Independent & Dependent Variables
The independent variable is what is deliberately changed or chosen (plotted on the x-axis); the dependent variable is what responds and gets measured (plotted on the y-axis).
The same idea anchors science items: in an experiment the independent variable is manipulated, the dependent variable is measured, and everything else is held constant as a control.
PlayPrepHQ study notes are written and reviewed against primary exam sources. How we create & review content →