Biology GCSE
double-blind placebo trials
What double-blind placebo trials means in Biology GCSE, as defined for OCR.
Definition of double-blind placebo trials
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Reference: OCR
Large-scale trials comparing the drug against a placebo, where neither patients nor doctors know who receives the active drug, eliminating psychological and observer bias.
Topics that use double-blind placebo trials
- Monitoring and maintaining health (OCR GCSE)
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Using double-blind placebo trials in the exam
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