Why is it important to include a control group

A control group is a critical part of any scientific experiment because it provides a baseline against which the experimental group can be compared. The control group is a group that is not subjected to the independent variable being tested, whereas the experimental group is. By comparing the results of the experimental group to those of the control group, researchers can be confident that any changes observed are solely due to the independent variable being tested and not due to other factors. This is crucial, as it ensures that the results obtained are valid and reliable, and it also helps to eliminate the possibility of bias and confounding variables. Therefore, the inclusion of a control group in scientific experiments is essential to ensure the accuracy and integrity of the results obtained.