Biology A (Salters-Nuffield) A-Level
double blind trials
What double blind trials means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of double blind trials
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Read the wording for your board, then hide it and explain double blind trials in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Trials in which neither participants nor assessors know who receives the treatment, reducing bias.
Topics that use double blind trials
- Topic 4: Biodiversity and Natural Resources (Pearson Edexcel A-Level)
Related terms
- Adaptation and speciation
- Allele frequency change over time
- Amyloplast
- Aseptic technique
- Binary fission
- Biodegradability
- Calcium and magnesium in plant structure and function
- Cellulose
Using double blind trials in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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