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Independent Variable
A variable in an experiment that is manipulated or changed by the researcher to study its effects on the dependent variable.
Extraneous Variable
A variable that is not of interest in a study but may affect the outcome of the experiment if not controlled.
Control Group
In research, a control group is a group of subjects not exposed to the experimental treatment, used as a benchmark to measure the effect of the treatment.
Independent Variable
A variable that is manipulated in an experiment to see its effect on a dependent variable.
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