What would serve as a good control for this experiment?

A good control for this experiment would involve using a group that does not receive the experimental treatment or intervention, allowing for a comparison against the group that does. This control group should be identical in all other aspects, such as age, environment, and baseline characteristics, to ensure that any differences in outcomes can be attributed to the treatment itself. Additionally, implementing a placebo control, if applicable, could help account for psychological effects on the participants.