control group

Front

What is a control group?

Back

A control group is a group in an experiment that does not receive the treatment or variable being tested, allowing for comparison with the experimental group.

Front

How many control groups can there be in an experiment?

Back

There can be 1 control group in an experiment.

Front

True or False: The control group stays the same throughout the experiment.

Back

True.

Front

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

Back

It is identical to the experimental group except for the variable being tested.

Front

In an experiment, there has to be a _____________.

Back

control group.

Front

If Johnny is testing fertilizer on plants, what is the control in his experiment?

Back

The plant with no fertilizer.

Front

Why is a control group important in an experiment?

Back

It helps to isolate the effect of the variable being tested by providing a baseline for comparison.

Front

What does it mean if an experiment has a variable?

Back

A variable is a factor that can change in an experiment, affecting the outcome.

Front

What is the difference between the experimental group and the control group?

Back

The experimental group receives the treatment or variable, while the control group does not.

Front

Can a control group be larger than the experimental group?

Back

No, typically the control group is not larger; it is often the same size or smaller.