Heritability estimates provide a crumbling foundation

When Genotype X Environment (G X E) interactions are present, heritability estimates are not interpretable. Mealey cites abundant evidence for G X E interactions in the etiology of sociopathy, thereby completely undermining estimates of the heritability of sociopathy which form the foundation of her model. Without proper evidence for a genetic basis of sociopathy, Mealey's sociobiological model collapses under its own great weight.