Disease-reduction interventions like vaccination and clean water could raise national IQ scores

Evidence

The Flynn Effect and IQ Disparities Among Races, Ethnicities, and Nations: Are There Common Links? (Psychology Today)

Categorization

• corroborated: 2 independent passages support this claim
• XREF: connects to: Policies and interventions can raise a nation’s average IQ; Toxocara canis infection lowers IQ independent of socioeconomic and racial factors — Harriet A. Washington, A Terrible Thing to Waste, 980; Rapid IQ gains from reduced disease burden rule out genetic explanations — Harriet A. Washington, A Terrible Thing to Waste, 945 (+8 more)

Related

• Policies and interventions can raise a nation’s average IQ (similarity 0.87)
• National infectious disease burden strongly predicts average national IQ (similarity 0.85)
• The generational rise in IQ scores is attributed to environmental factors like improved nutrition, education, and reduced toxin exposure. (similarity 0.85)
• Targeted interventions can raise a nation’s average intelligence level (similarity 0.84)
• Rapid IQ gains from reduced disease burden rule out genetic explanations (similarity 0.82)
• Population IQ scores have risen rapidly over decades, refuting fixed-IQ claims (similarity 0.81)
• Toxocara canis infection lowers IQ independent of socioeconomic and racial factors (similarity 0.80)
• Adding iodine to salt in 1924 raised average U.S. IQ scores (similarity 0.79)
• IQ has risen across generations worldwide, and the effect must be environmental since genetic mutation could not act that fast, amounting to about 15 IQ points per generation on fluid tests. (similarity 0.79)
• Intelligence quotient significantly influences important life outcomes (similarity 0.79)