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Am J Ment Defic. 1977 Jan;81(4):391-3.

Effects of preferred stimuli on the free recall of moderately and severely mentally retarded children.

American journal of mental deficiency

A L Burger, S C Erber

PMID: 836639

Abstract

The effects of two types of stimuli, preferred and nonpreferred, on the free recall and clustering of 16 moderately and severely retarded public-school children were investigated. An empirical determination was made as to whether to classify a particular conceptual category of stimuli as preferred or nonpreferred. All subjects were presented with 18 objects from 6 conceptual categories in blocked condition. Both the preferred and nonpreferred stimuli were given to each subject in a counterbalanced order using a repeated measures design. Our major finding was that the use of preferred stimuli had a significant facilitating effect on recall but not clustering.

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