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Heart disease Quote by T. Colin Campbell

“A classic illustration of this difficulty is that countries with more telephone poles often have a higher incidence of heart disease, and many other diseases. Therefore, telephone poles and heart disease are positively correlated. But this does not prove that telephone poles cause heart disease…” quote by T. Colin Campbell
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““A classic illustration of this difficulty is that countries with more telephone poles often have a higher incidence of heart disease, and many other diseases. Therefore, telephone poles and heart disease are positively correlated. But this does not prove that telephone poles cause heart disease. In effect, correlation does not equal causation.””

T. Colin Campbell

About This Quote

Correlation shows two variables move together but does not prove one causes the other.

In simple terms: Correlation ≠ causation

Key Takeaway

Don’t assume cause from correlation.

Themes

statistics science critical thinking

Mood

skeptical analytical

Type

educational informative

When to use this quote

  • research analysis
  • policy making
  • public health messaging

Key Concepts

causation spurious correlation

Questions to Reflect On

  • How can you test if a relationship is causal?
  • What other factors might explain the link?
A Different Perspective

Correlation can be misleading without experimental evidence.

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