無む作さく為い化か比ひ較かく試し験けん

noun

randomized controlled trial

Technical term used in clinical research and statistics to describe a study design where participants are randomly assigned to groups.

• この新しん薬やくの効こう果かは、無む作さく為い化か比ひ較かく試し験けんによって検けん証しょうされた。

  The efficacy of this new drug was verified through a randomized controlled trial.