Assortative mating for IQ and personality due to propinquity and personal preference.
Mascie-Taylor
C G
CG
Vandenberg
S G
SG
D000328:Adult; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D010553:Personality Development; D010555:Personality Inventory; D010641:Phenotype; D012931:Social Environment