title: Word frequency and pronunciation and the verbal-discrimination learning of nonretarded and retarded children.
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D002657:Child Development; D003463:Cues; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005246:Feedback; D005260:Female; D006801:Humans; D007858:Learning; D008297:Male; D011214:Practice, Psychological; D011336:Probability; D012737:Sex Factors; D014705:Verbal Behavior; D014706:Verbal Learning