EVERYDAY SCIENCE

Detailed explanation-1: -The negative control group is a group that does not receive changes to the independent variable. It is used as a benchmark to compare the results of the experimental group to.

Detailed explanation-2: -An experimental group is the group that receives the variable being tested in an experiment. The control group is the group in an experiment that does not receive the variable you are testing.

Detailed explanation-3: -The treatment group (also called the experimental group) receives the treatment whose effect the researcher is interested in. The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment to control for placebo effect).

Detailed explanation-4: -Experimental Group. The simplest way to determine the difference between a control group and an experimental group is to determine which group receives the treatment and which does not. To ensure that the results can then be compared accurately, the two groups should be otherwise identical.

Detailed explanation-5: -Unlike the experimental group, the control group is not exposed to the independent variable under investigation. So, it provides a baseline against which any changes in the experimental group can be compared.