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McLean, Lee K.; And Others – American Journal on Mental Retardation, 1996
Evaluation of questionnaires on the expressive communication skills of 211 individuals with severe mental retardation (including both children and adults in a variety of residential settings) revealed a wide range of communication abilities, with a significantly larger percentage of adults than children communicating at symbolic levels. (Author/DB)
Descriptors: Adults, Age Differences, Children, Communication Skills