title: Intelligence and family size reconsidered.
authors.forename: R D
authors.initials: RD
authors.lastname: Retherford
authors.forename: W H
authors.initials: WH
authors.lastname: Sewell
mesh_terms: D000293:Adolescent; D000328:Adult; D004522:Educational Status; D005191:Family Characteristics; D005260:Female; D005298:Fertility; D006801:Humans; D007360:Intelligence; D008297:Male; D008875:Middle Aged; D008957:Models, Genetic; D012641:Selection, Genetic; D014922:Wisconsin