title: Verbal productivity and adjective usage.
mesh_terms: D000293:Adolescent; D001741:Black or African American; D002648:Child; D005260:Female; D006801:Humans; D007360:Intelligence; D007585:Jews; D007804:Language Development; D007858:Learning; D008297:Male; D012660:Semantics; D012737:Sex Factors; D012923:Social Class; D014705:Verbal Behavior