title: In search of the missing environmental variance in cognitive ability.
mesh_terms: D000328:Adult; D002648:Child; D003071:Cognition; D005260:Female; D014644:Genetic Variation; D005824:Genetics, Behavioral; D006801:Humans; D007223:Infant; D007360:Intelligence; D008297:Male; D010465:Perception; D012931:Social Environment