In a controlled experiment what is the experiment group compared to Apex?

In a controlled experiment, the experimental group is the set of subjects that receives the treatment or intervention being tested, while the control group does not receive the treatment and serves as a baseline for comparison. This allows researchers to observe the effects of the treatment by comparing outcomes between the two groups. The control group helps isolate the impact of the independent variable, ensuring that any observed changes in the experimental group can be attributed to the treatment rather than other factors.