An experimental group is a term used in experimental studies to refer to a group of participants who are exposed to a specific experimental treatment or intervention. This treatment is a variable that the researchers manipulate to measure the impact of the treatment on the dependent variable being studied. The experimental group is then compared against a control group, which is not exposed to the experimental treatment. The purpose of the control group is to provide a baseline for measuring the effects of the independent variable, thus ensuring that any observed changes in the dependent variable can be attributed to the experimental treatment. By using an experimental group, researchers can determine if the treatment has any significant effects, and if so, they can evaluate the efficacy of the treatment.