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.
Answer:A
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.