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US Fertility Rate vs US Internet Usage
US Fertility Rate and US Internet Usage correlate at r = -0.64 over 34 years (1990–2023), p < 0.0001. With the time trend removed, r = +0.86. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is -0.64, but once each series' time trend is removed it becomes 0.86. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- -0.64
- p-value
- < 0.0001
- Years compared (n)
- 34 (1990–2023)
- 95% confidence interval
- -0.80 to -0.39
- Correlation with the time trend removed
- +0.86
Sources
- US Fertility Rate (children per woman): Our World in Data. US Fertility Rate (Our World in Data: Total fertility rate).
- US Internet Usage (% of population): Our World in Data. US Internet Usage (Our World in Data: Share of the population using the Internet).
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.