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Associated cognitive profiles of primary school students with dyslexia in a Singapore sample
Author
Liu, Yimei
Supervisor
Chew, Chelsea Liang Ru
Abstract
This study, the second part of a combined study, explores the cognitive profiles of Singaporean primary school students who were diagnosed with Dyslexia. Twenty-nine students who were diagnosed with Dyslexia were, in the first part of the combined study, assessed on measures of phonological coding and orthographic coding to determine if they have surface, phonological or mixed subtype of dyslexia. In the present study, their deficits in orthographic or phonological coding were then correlated with various cognitive factors – phonological awareness, verbal short-term memory, rapid automatised naming (RAN), visual skills. Past research had found that individuals with Dyslexia show associative difficulties in these cognitive factors, hence, these correlations allow for an examination of specific correlations between reading characteristics of the students. It was hypothesised that tasks that measure orthographic coding skills will correlate significantly with tasks that measure visual skills as well as RAN abilities, while tasks that measure phonological coding skills will correlate significantly with tasks that measure phonological awareness, verbal short-term memory as well as RAN skills. The results show positive correlations between phonological coding tasks and phonological awareness and verbal short-term memory factors, as hypothesised. Orthographic coding tasks only correlated positively with specific areas of visual skills. However, RAN did not correlate with both phonological coding and orthographic coding tasks. An unexpected finding was that phonological coding tasks were found to correlate with visual skills, which was not has hypothesised. The results, while preliminary, lend support for further consideration of the various cognitive factors in the assessment and intervention of Dyslexia. The findings of the study also provide grounds for further research in the area of cognitive factors related to Dyslexia within the Singapore context.
Date Issued
2016
Call Number
LC4708.5 Liu
Date Submitted
2016