Double-Blind Study
คำจำกัดความ
A clinical trial design where neither the participants nor the researchers know who is receiving the active drug versus placebo. Double-blinding prevents both patient expectations and researcher bias from influencing the results.
ตัวอย่าง
In a double-blind antidepressant trial, identical-looking pills are used so that neither patients nor doctors can distinguish the active drug from the placebo.
คำที่เกี่ยวข้อง
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