Why Is It Important That an Experiment Include a Control

question 33

Multiple Choice

Why is it important that an experiment include a control group?

• A)A control group provides a reference by which to determine if a particular outcome may reasonably result from the variable being tested.
• B)The control group provides a reserve of experimental subjects.
• C)A control group is required for the development of an "If ...then" statement.
• D)A control group assures that an experiment will be repeatable.

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