Independent/Dependent Variables

The independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

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

Control variables are the factors that are kept constant throughout an experiment to ensure that the results are due to the independent variable alone.

Control variables are important because they help to ensure that the experiment is fair and that the results are valid.

A control group is used as a baseline to compare the effects of the independent variable, helping to isolate the effects of the treatment.

The independent variable is usually the factor that is being tested or changed in the question.

The dependent variable is the test scores.

The independent variable is the type of liquid given to the plants.

This control variable ensures that all participants have the same opportunity to complete the test, isolating the effect of tardiness on test scores.

Keeping variables constant means that certain factors are not allowed to change during the experiment to ensure that the results are due to the independent variable.