Examlex
Can the age of the Earth be reliably estimated from sediment thicknesses?
Experimental Group
In a scientific study, this is the group that receives the treatment or intervention being tested, allowing researchers to observe its effects in comparison to a control group.
Control Group
In experiments, a group of subjects that does not receive the treatment being tested, used as a benchmark to measure the effects of the treatment on the experimental group.
Dependent Variable
In research, it is the variable that is being tested and measured, usually to see if it is affected by the independent variable.
Randomization
The process of making choices or selecting participants for a study randomly to eliminate bias and ensure impartiality.
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