Abstract
Since conventional tests of speech audiometry cannot be carried out on young children suffering from very severe hearing losses, selection of appropriate hearing aids for them cannot be based on findings in this sphere. An alternative approach is suggested involving a theoretical consideration of combining Boothroyd's Speech Area with the effect of the amplifying characteristics of a particular hearing aid. A description follows of some aspects of the auditory experience and phonological development of two children for whom aids were prescribed utilising this approach. A brief final section is included illustrating the Speech Areas used in practice by four less deaf children when obtaining their optimum scores in tests of speech audiometry.

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