Question

in a scientific experiment, the control group ______. allows for the simultaneous testing of multiple variables serves as a basis of comparison with the experimental group is required for the validity of discovery science is subjected to the factor whose effect is being tested

Explanation:

In a scientific experiment, the control group is not exposed to the experimental treatment. Its main purpose is to provide a baseline. By comparing the experimental group (which receives the treatment) with the control group, researchers can determine the effect of the independent variable. For example, in a drug - testing experiment, the control group might receive a placebo while the experimental group receives the actual drug. This comparison helps in isolating the effect of the drug.

Answer:

serves as a basis of comparison with the experimental group