Biology A-Level
placebo and control group ethics
What placebo and control group ethics means in Biology A-Level, as defined for AQA.
Definition of placebo and control group ethics
Check what you remember
Read the wording for your board, then hide it and explain placebo and control group ethics in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
It is not ethical to withhold an effective treatment, so a control group receives an existing drug rather than a placebo if a treatment already exists.
Topics that use placebo and control group ethics
- Cell recognition and the immune system (AQA A-Level)
Related terms
- active immunity
- agglutination
- animal use in production and testing
- antibody
- antigen
- antigen-antibody complex
- antigen-presenting cell
- antigens in vaccines
Using placebo and control group ethics 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.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge