Independent-Dependent Variables & Experimental-Control Groups

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or manipulated by the experimenter to observe its effect on the dependent variable.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What does DRY stand for in the context of experiments?

Back

DRY stands for 'Dependent, Responding, Y-axis', which helps remember that the dependent variable is graphed on the Y-axis.

Front

What is an experimental group?

Back

The experimental group is the group in an experiment that receives the treatment or condition being tested.

Front

What is a control group?

Back

The control group is the group in an experiment that does not receive the treatment or condition, serving as a baseline for comparison.

Front

What are constants in an experiment?

Back

Constants are the factors that are kept the same throughout an experiment to ensure that the results are due to the independent variable.

Front

How is the independent variable represented on a graph?

Back

The independent variable is graphed on the X-axis.

Front

How is the dependent variable represented on a graph?

Back

The dependent variable is graphed on the Y-axis.

Front

In a plant growth experiment, what is the independent variable if you are testing the effect of water?

Back

The independent variable is the amount of water given to the plants.

Front

In a plant growth experiment, what is the dependent variable?

Back

The dependent variable is the growth of the plants, often measured in height or biomass.