Answer:
Control group
Explanation:
Experimental Design:
A type of research design that is a planned and analyzed course of action of the experiment, decided before the execution of the experiment itself. An experimental design decides the dependent and independent variables, the materials, methods and ultimately the data recording and data analysis methods.
In an experiment, there are two groups into which the research subjects or samples are divided:
Experimental group:
An experimental group is a group of samples that is subjected to a change in the independent variable.
For example, suppose that a new drug for blood pressure is being tested on randomly selected individuals. The individuals are divided into two groups. The new drug is only given to one of the groups. This group that receives the medicine is the experimental group that will hep determine the effects of the drug on blood pressure.
Control Group:
The group of samples or individuals that are not subjected to the treatment are called the control group. The purpose of having a control group is to ensure that the effects observed in response to the independent variable are exclusive to the variable. This rules out the possibility of the effects being caused by chance or any other factor.
