An evaluation of speech and hearing problems in the schools, research problems and capabilities of a research center for resolving issues pertaining to school programs [electronic resource] / Maryjane Rees and Others.

Research is needed to determine the age at which a child with a functional articulatory disorder should begin therapy and the frequency of therapy. The authors rejected the survey method because of its many limitations. Research, using the experimental approach, was planned to screen 30,000 children...

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