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US Renewable Energy Share vs US R&D Expenditure
US Renewable Energy Share and US R&D Expenditure correlate at r = +0.90 over 28 years (1996–2023), p < 0.0001. With the time trend removed, r = +0.48. Interpret with caution.
Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.90 to 0.48 once the trend is removed.
- Pearson r
- +0.90
- p-value
- < 0.0001
- Years compared (n)
- 28 (1996–2023)
- 95% confidence interval
- 0.79 to 0.95
- Correlation with the time trend removed
- +0.48
Sources
- US Renewable Energy Share (% of primary energy): Our World in Data. US Renewable Energy Share (Our World in Data: Renewables).
- US R&D Expenditure (% of GDP): World Bank. US R&D Expenditure (World Bank indicator GB.XPD.RSDV.GD.ZS).
Related pairs
- US Renewable Energy Share vs US Federal Debt Outstanding (r = +0.99)
- US Renewable Energy Share vs US Wind Power Generation (r = +0.99)
- US Renewable Energy Share vs US CO₂ Emissions per Capita (r = -0.97)
- US Renewable Energy Share vs US Population Aged 65+ (r = +0.96)
- Atmospheric Methane (global) vs US R&D Expenditure (r = +0.95)
- US Renewable Energy Share vs US GDP (current US$) (r = +0.95)
Correlation does not imply causation. How the verdict is worked out.