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Twin heritability models can tell you whatever you want to hear

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The growing "missing heritability" problem within twin studies

Odd Nerdrum, Sleeping Twins, 2019 Since the early findings from Genome-Wide Association Studies, the genetics community has been engaged in a debate over “missing heritability”1: the difference between estimates of heritability from these molecular studies and those from classical twin models. For some traits the difference is moderate: 45% of the heritability of height estimated with GWAS, compared to 70-80% estimated in twins. For some traits it is large large: 6% of the heritability of behavioral problems estimated from GWAS compared to 58% estimated from twins. But the difference is…

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