What is experimental and control group?

Experimental group: the group in an experiment that receives the variable being tested. One variable is tested at a time. The experimental group is compared to a control group, which does not receive the test variable. In this way, experimental groups are used to find answers in an experiment.

Control group - the group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.

An experimental group is the group in an experiment that receives the variable being tested. One variable is tested at a time. The control group is defined as the group in an experiment or study that does not receive treatment by the researchers.