Which statement correctly describes the independent and dependent variables in an experiment?

Which statement correctly describes the independent and dependent variables in an experiment?

• A. The independent variable is measured and observed; the dependent is intentionally changed by the researcher.
• B. The dependent variable is deliberately changed by the experimenter; the independent variable is measured.
• C. The independent variable is deliberately changed by the experimenter; the dependent variable is measured and observed.
• D. Both variables are measured and observed with equal control.

Answer: (C)