noun
control experiment
Scientific term for an experiment where a control group or condition is used for comparison.
対照実験を行って、薬の効果を確かめた。
We conducted a control experiment to verify the drug's effectiveness.
対照群 is the control group itself, while 対照実験 is the experiment that uses such a group.
Compound of 対照 (comparison, contrast) and 実験 (experiment).