If your doctor gave you a pill that contained nothing but starch and water, yet your headache got better, you’ve experienced the placebo effect.
Beecher’s evidence and conclusions, they do not question his demonstration that placebos are necessary for drug trials.
That’s why today’s “gold standard” of drug testing is the double-blind, randomized controlled trial . In an RCT, some of the patients receive the actual drug; others receive a placebo. Neither the researchers nor the patients know who gets the drug and who gets the placebo, hence the “double-blind.” Experts won’t approve a drug if it is not more effective than the placebo.
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