Evidence and reasoning

Correlation

A pattern where two measures tend to move together.

  • Evidence and reasoning

Definition

A pattern where two measures tend to move together. In a positive correlation both rise together. In a negative correlation one rises as the other falls. Correlation alone never proves that one causes the other.

Also called

Association

Example

At Alta Sky Centre, cloudy evenings and long cafe queues go together. The queues happen because outdoor groups come inside at the same time.

Alta Sky Centre AS is a fictional company created for Insyt.

See how it works

ObservedTwo measures move together
Not establishedOne caused the other

Investigate confounding factors before making causal claims.

Check your understanding

Common mistake: Correlation is association, not proof of causation.

Does a strong correlation establish cause?

Show explanation

No. The relationship needs further evidence.

For your role

Choose your role to see what this term means in your work.

Why it matters

It helps you find relationships worth investigating further.

Where it is used

Analysis reports, research and data science reviews.