Mcallister, H; (2005) Psycholinguistic profiling of a deaf child. Doctoral thesis , UCL (University College London).

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Abstract

In this study Stackhouse and Wells' speech processing model (1997), is used to create a psycholinguistic profile of a 9 year old boy, (MC), who has a moderate hearing impairment and has been identified as having additional literacy difficulties. The Rees-Coleman Procedure, a series of computer tests including real- and nonword repetition, lexical decision, etc. is used along with informal real- and nonword reading and writing tests to identify levels of breakdown for different contrasts and to see if any deficits identified could account for his literacy difficulties. Different levels of breakdown are identified for different contrasts which can be divided into four separate profile patterns. Even though it is found that input skills for all contrasts tested except for sh/ch are now generally accurate, MC does not always distinguish between them in his speech as he has not yet updated his motor programs for these phonemes at the beginning of words. Results indicate that some of MC's literacy difficulties can be explained by deficits identified in the Rees-Coleman Procedure due to these inaccurate motor programs. Additional difficulties are also identified which are more likely to be due to deficits in phonological awareness and/or the ability to make links between phonemes and graphemes, therefore supporting a diagnosis of dyslexia.

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