CONCEPT USAGE RESEARCH WITH THE MENTALLY RETARDED

STUDIES REVIEWED ARE GROUPED BY METHODOLOGY (ASSOCIATIVE CLUSTERING AND SORTING) AND BY S POPULATION (FAMILIAL AND ORGANIC) TO AID CROSS-EXPERIMENT COMPARISONS. 2 OF THE CONCLUSIONS DRAWN ARE (1) THAT RETARDATES EVIDENTLY DO HAVE CONCEPTS AVAILABLE BUT ARE LESS ABLE TO USE THEM THAN ARE NORMALS WHEN VERBAL LABELING IS REQUIRED, AND (2) THAT WHEN ATTENTION IS CALLED TO THE RELEVANT CUES IN A SITUATION, THE RETARDATE DOES AS WELL AS OR BETTER THAN HIS MA CONTROL. (2 P. REF.)