title: Effect of S-R discontiguity and double responding on two-odd oddity learning by retardates.
mesh_terms: D000293:Adolescent; D002648:Child; D002674:Child, Institutionalized; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D013028:Space Perception