Examlex
Provide a review of political systems from a global perspective.
Independent Variable
The variable in an experiment that is manipulated to observe its effect on the dependent variable.
Experimental Group
A group in a scientific study that receives the intervention or treatment being tested.
Control Group
In an experiment, the group that does not receive the treatment or intervention being tested, used as a baseline to compare the effects of the treatment.
Third Variable Problem
A challenge in research where an unmeasured, external factor causes the correlation between two variables, complicating causal interpretations.
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