Biology GCSE
confounding variables
What confounding variables means in Biology GCSE, as defined for OCR.
Definition of confounding variables
Check what you remember
Read the wording for your board, then hide it and explain confounding variables in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Factors such as diet, smoking, or age that must be controlled by matching patient cohorts for age, sex, and health status.
Topics that use confounding variables
- Monitoring and maintaining health (OCR GCSE)
Related terms
- AIDS
- airborne droplets
- antibiotics versus antivirals
- antibodies
- antigen detection with antibodies
- antiseptic chemicals
- bar charts
- bioethics and germline editing
Using confounding variables 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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