Biology GCSE
Double-blind trial
What Double-blind trial means in Biology GCSE, as defined for Pearson Edexcel.
Definition of Double-blind trial
A clinical trial where neither the patients nor the doctors know who has been given the real drug and who has been given the placebo.
Topics that use Double-blind trial
- Topic 5 – Health, disease and the development of medicines (Pearson Edexcel GCSE)
Related terms
Using Double-blind trial in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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