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US Internet Usage vs US R&D Expenditure
US Internet Usage and US R&D Expenditure correlate at r = +0.74 over 28 years (1996–2023), p < 0.0001. With the time trend removed, r = -0.37. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.74, but once each series' time trend is removed it becomes -0.37. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.74
- p-value
- < 0.0001
- Years compared (n)
- 28 (1996–2023)
- 95% confidence interval
- 0.50 to 0.87
- Correlation with the time trend removed
- -0.37
Sources
- US Internet Usage (% of population): Our World in Data. US Internet Usage (Our World in Data: Share of the population using the Internet).
- US R&D Expenditure (% of GDP): World Bank. US R&D Expenditure (World Bank indicator GB.XPD.RSDV.GD.ZS).
Related pairs
- US Internet Usage vs US Internet Users (r = +1.00)
- US Internet Usage vs US Adult Obesity (r = +0.98)
- US Internet Usage vs US Mobile Subscriptions (r = +0.98)
- US Internet Usage vs US Median Age (r = +0.97)
- US Internet Usage vs US Population (r = +0.97)
- US Internet Usage vs US Infant Mortality (r = -0.96)
Correlation does not imply causation. How the verdict is worked out.