In a controlled experiment, the group that is exposed to the variable being studied is called the _____, and the group not being exposed is called the _____.

A) control group; sample
B) experimental group; control group
C) sample; population
D) population; sample

Experimental Group

The group in an experiment that receives the treatment or the variable being tested.

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment or intervention being tested, used as a benchmark to measure the effect of the treatment.

Controlled Experiment

A scientific test that is directly manipulated by a researcher, to determine the effect of a variable on a particular system.