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US Marriage Rate vs US Resident Patent Applications
US Marriage Rate and US Resident Patent Applications correlate at r = -0.95 over 41 years (1980–2021), p < 0.0001. With the time trend removed, r = +0.23. 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 0.23 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.95
- p-value
- < 0.0001
- Years compared (n)
- 41 (1980–2021)
- 95% confidence interval
- -0.97 to -0.91
- Correlation with the time trend removed
- +0.23
Sources
- US Marriage Rate (per 1,000 people): Our World in Data. US Marriage Rate (Our World in Data: Crude marriage rate).
- US Resident Patent Applications (applications): World Bank. US Resident Patent Applications (World Bank indicator IP.PAT.RESD).
Related pairs
- US Mobile Subscriptions vs US Resident Patent Applications (r = +0.99)
- US Marriage Rate vs US Adult Obesity (r = -0.98)
- US Adult Obesity vs US Resident Patent Applications (r = +0.98)
- US Resident Patent Applications vs US Population (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Resident Patent Applications (r = +0.97)
- US GDP per Capita vs US Resident Patent Applications (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.