Genetic And Environmental Influences On Intelligence
  • Quantitative estimates of heritability
    • Overlap of genetic and phenotypic variability (population estimates!)
    • Galton's early efforts
    • Twin studies over decades
    • Adoption studies
    • GCTA studies
    • Do genetic effects appear additive or non-additive?
    • Multivariate genetic studies (associations among abilities aka structure)
  • Where are family influences?
  • Assortative mating
  • Environmental effects
    • Education (a separate topic)
    • Culture (changes across time and space)
    • Environmental effects on gene (expression) frequencies (inbreed depression, heterosis)
    • Nutrition and vitamins
  • Gene-envirnment correlations (Wendy Johnson's elephant in the room)
  • Gene-environment interactions

These three papers are useful reading

Deary, I. J., Spinath, F. M. and Bates, T. C. (2006). Genetics of intelligence. European Journal of Human Genetics, 14. 690-700. doi. pdf

Bates, T. C., Lewis, G. J. and Weiss, A. (2013). Childhood Socioeconomic Status Amplifies Genetic Effects on Adult Intelligence. Psychological Science, 24. 2111-2116. doi. PMID. pdf

Plomin, R., & Deary, I. J. (2015). Genetics and intelligence differences: five special findings. Molecular Psychiatry, 20(1), 98-108. doi:10.1038/mp.2014.105