What are the characteristics of experimentation that make it possible to isolate cause and effect?

Experimentation makes it possible for researchers to isolate cause and effect by allowing the researchers to manipulate one factor while controlling the other factors. This is achieved by creating two groups, subjects are put in these groups randomly in order to reduce experimental biases.

The two groups are the experimental group and the control group. The subjects in the experimental group will be exposed to treatment while the subjects in the control group will not be exposed to the treatment.