How a character works differs from its long-term genetic effects

Evidence

So even if IQ were genetically mediated, this would be no reason to abandon efforts to elevate it. — Harriet A. Washington, A Terrible Thing to Waste, 157 (#expands, via linked claim)

Just as adding iodine to the diets of 1920s Americans raised the IQs of “dullard” areas by 15 points, the average Kenyan IQ rose 14 points between 1984 and 1998 in parts of the country that enjoyed improvements in health, including reduced disability from untreated infectious disease. Parasite stress explains this, but genetics does not: the IQ gains were too high and too rapid to be explained by evolutionary and genetic mechanisms. — Harriet A. Washington, A Terrible Thing to Waste, 945 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Genetic causation of a trait does not imply the trait is unchangeable — Harriet A. Washington, A Terrible Thing to Waste, 157; Intelligence develops from environment and experience rather than genetic inheritance; Rapid IQ gains from reduced disease burden rule out genetic explanations — Harriet A. Washington, A Terrible Thing to Waste, 945 (+1 more)

Related

• Genetic causation of a trait does not imply the trait is unchangeable (similarity 0.86)
• With heritability well below 1.00, IQ must be subject to substantial environmental influences, though genetic influence increases with age while shared family environment effects shrink by late… (similarity 0.83)
• Rapid IQ gains from reduced disease burden rule out genetic explanations (similarity 0.83)
• Intelligence develops from environment and experience rather than genetic inheritance (similarity 0.81)
• Intelligence is malleable and shaped by environment, not fixed by heredity (similarity 0.81)
• A character’s functioning differs from its gene-frequency changes (similarity 0.78)

Broader Connections

• Genetic causation of a trait does not imply the trait is unchangeable #expands (0.90) — Harriet A. Washington, A Terrible Thing to Waste, 157
• Rapid IQ gains from reduced disease burden rule out genetic explanations #corroborates (0.85) — Harriet A. Washington, A Terrible Thing to Waste, 945
• Intelligence develops from environment and experience rather than genetic inheritance #qualifies (0.70)