Which of the following is the best description of a control for an experiment?
A)The control group is kept in an unchanging environment.
B)The control group is left alone by the experimenters.
C)The control group is matched with the experimental group except for the one experimental variable.
D)The control group is exposed to only one variable rather than several.

Question

Quizplus · Accepted Answer

The control group in an experiment is used as a standard of comparison for the experimental group. In order for the comparison to be valid, the control group should be matched with the experimental group except for the one experimental variable. This ensures that any differences observed between the two groups can be attributed to the variable being tested.

Which of the Following Is the Best Description of a Control