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US Rural Population vs US Secondary School Enrollment

US Rural Population and US Secondary School Enrollment correlate at r = -0.65 over 35 years (1971–2022), p < 0.0001. With the time trend removed, r = +0.42. Direction flips without the trend.

Verdict: Direction flips without the trend. The raw correlation is -0.65, but once each series' time trend is removed it becomes 0.42. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.

Pearson r
-0.65
p-value
< 0.0001
Years compared (n)
35 (1971–2022)
95% confidence interval
-0.81 to -0.40
Correlation with the time trend removed
+0.42

Sources

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Correlation does not imply causation. How the verdict is worked out.