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Which of the following news wires requires a fee for services?
Independent Variables
In research, the variable that is manipulated or changed by the researcher to observe how it affects the dependent variable.
Dependent Variables
In experimental research, the variable that is tested and measured, expected to change when the independent variable is altered.
Experimental Method
A research method involving the manipulation of variables to determine cause and effect relationships.
Random Assignment
A method used in experiments to randomly allocate participants to different groups in order to reduce bias and ensure the groups are comparable.
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