Examlex
Nostalgia is important to marketers but they have no way of measuring it.
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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