title: The effect of order of labelling on the subjective organization and clustering of severely retarded adults.
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D004314:Down Syndrome; D006801:Humans; D008607:Intellectual Disability; D007361:Intelligence Tests; D007858:Learning; D008568:Memory; D011214:Practice, Psychological; D012718:Set, Psychology; D013223:Statistics as Topic; D013850:Thinking; D014705:Verbal Behavior; D014706:Verbal Learning; D014796:Visual Perception