Biology A (Salters-Nuffield) A-Level
placebo
What placebo means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of placebo
Check what you remember
Read the wording for your board, then hide it and explain placebo in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
An inactive treatment given to a control group, allowing comparison of real effects against expectation.
Topics that use placebo
- 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 placebo 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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