In an experiment involving plants, the independent variable is the amount of fertilizer and the dependent variable is the plant's height.
explanation
What is an independent variable?
The independent variable is a variable that researchers manipulate to observe its effect on a dependent variable. Researchers are interested in how the independent variable affects the dependent variable.
What is a dependent variable?
The dependent variable is a variable that is being measured to determine the effect of the independent variable. It is the outcome variable that changes as a result of the manipulation of the independent variable.
What is a controlled variable?
A controlled variable is a variable that is kept constant or consistent throughout an experiment.
The purpose of controlling variables is to isolate the effect of the independent variable on the dependent variable.