二に重じゅう盲もう検けん試し験けん

noun

double-blind test; double-blind trial

A clinical trial design where neither the participants nor the researchers know who is receiving the treatment and who is receiving a placebo, to prevent bias.

See also: 二重盲検法 (にじゅうもうけんほう)

• 新しん薬やくの効こう果かを調しらべるために二に重じゅう盲もう検けん試し験けんが行おこなわれた。

  A double-blind test was conducted to investigate the effectiveness of the new drug.