Independent & Dependent Variables

Front

What is an independent variable?

Back

The variable that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

The variable that is observed and measured in an experiment; it is affected by the independent variable.

Front

What is a control in an experiment?

Back

Something in the experiment that must remain the same to ensure a fair test.

Front

In Dilcia's experiment, what is the independent variable?

Back

Drinking milk.

Front

In the bug repellent experiment, what is the independent variable?

Back

If an arm was sprayed with bug repellent or not.

Front

In Javier's sleep experiment, what is the independent variable?

Back

The number of hours of sleep they had.

Front

What is the purpose of a control group in an experiment?

Back

To provide a baseline for comparison against the experimental group.

Front

How do you identify the dependent variable in an experiment?

Back

Look for the variable that is measured or observed as a result of changes in the independent variable.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.

Front

Why is it important to keep certain variables constant in an experiment?

Back

To ensure that the results are due to the independent variable and not other factors.