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  • Title: Influence of iconicity and phonological similarity on sign learning by mentally retarded children.
    Author: Griffith PL, Robinson JH.
    Journal: Am J Ment Defic; 1980 Nov; 85(3):291-8. PubMed ID: 7446599.
    Abstract:
    The acquisition sign-word pairs by verbal moderately and severely retarded children as a function of the iconicity and cheremic (phonological) similarity of the signs and the vocabulary age of the subjects was studied using a recall format (alternate learning and test trials) paired-associates paradigm. Results of an analysis of variance revealed that iconicity enhanced learning, similarity interfered with acquisition, and there was no effect of vocabulary age within the range studied. There were not interaction among the above variables. Results were discussed in terms of the implications for teaching sign as a communication tool and for further research.
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