Why is it important that an experiment include a control group?
A)The control group is the group that the researcher is in control of; it is the group in which the researcher predetermines the nature of the results.
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.
E)Without a control group, there is no basis for knowing if a particular result is due to the variable being tested or to some other factor.

Question

Quizplus · Accepted Answer

Without a control group, it is difficult to know whether a particular result is due to the variable being tested or to other factors. The control group provides a standard against which comparisons can be made.

Why Is It Important That an Experiment Include a Control