Which of the following best describes an independent variable in an experiment?
- A. The variable the researcher deliberately changes or manipulates ✓
- B. The variable that is measured as the outcome
- C. A variable that is kept constant throughout the experiment
- D. A variable that has no effect on the results
Correct answer
A. The variable the researcher deliberately changes or manipulates
Explanation
The independent variable is the one deliberately manipulated by the researcher to observe its effect on the dependent variable.
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