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US Marriage Rate vs US Cereal Yield
US Marriage Rate and US Cereal Yield correlate at r = -0.85 over 61 years (1961–2022), p < 0.0001. With the time trend removed, r = -0.29. Likely spurious (shared time trend).
Verdict: Likely spurious (shared time trend). Both series mostly just trend over time. After removing that trend the correlation collapses to -0.29 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.85
- p-value
- < 0.0001
- Years compared (n)
- 61 (1961–2022)
- 95% confidence interval
- -0.91 to -0.77
- Correlation with the time trend removed
- -0.29
Sources
- US Marriage Rate (per 1,000 people): Our World in Data. US Marriage Rate (Our World in Data: Crude marriage rate).
- US Cereal Yield (kg per hectare): World Bank. US Cereal Yield (World Bank indicator AG.YLD.CREL.KG).
Related pairs
- US Marriage Rate vs US Adult Obesity (r = -0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Cereal Yield (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- US Cereal Yield vs US GDP per Capita (r = +0.97)
- US Cereal Yield vs US GDP (current US$) (r = +0.96)
- US Marriage Rate vs US Resident Patent Applications (r = -0.95)
Correlation does not imply causation. How the verdict is worked out.