title: Training and transfer of categorization by retarded adults.
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D008568:Memory; D008875:Middle Aged; D013647:Task Performance and Analysis; D014163:Transfer, Psychology; D014796:Visual Perception; D014825:Vocabulary