In this experiment, group a is the "experimental group" while group b is the "control group".
The experimental group is a gathering of people that are presented to the factor being analyzed. The control group, then again, isn't presented to the factor. It is basic that all other outer impacts are held consistent. That is, each other factor or impact in the circumstance needs to remain precisely the same between the experimental group and the control group. The main thing that is diverse between the two gatherings is the factor being inquired about.