Biology A-Level
Correlation
What Correlation means in Biology A-Level, as defined for AQA.
Definitions of Correlation
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Reference: AQA
Variables changing together, which must be distinguished from causation when analysing data on the incidence of cardiovascular disease.
Shows variables changing together, but causation requires a plausible mechanism and control of confounding variables.
Topics that use Correlation
- Gas exchange (AQA A-Level)
- Mass transport in animals (AQA A-Level)
Related terms
- affinity
- affinity for oxygen
- antagonistic intercostal muscles
- atrial systole
- Atrioventricular valves
- biconcave disc
- Biological drawing conventions
- Bohr effect
Using Correlation in the exam
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