A simple experiment has two groups of subjects called:
Correct answer: D. the control group and the experimental group
- A. the dependent group and the independent group
- B. the extraneous and the independent group
- C. the before group and the after group
- D. the control group and the experimental group
Explanation
In the standard two-group experiment, the experimental group receives the treatment or independent-variable manipulation, while the control group provides a comparison. “Dependent” and “independent” refer to variables, not groups.
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