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KMID : 1036820170220020272
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Communication Sciences & Disorders
2017 Volume.22 No. 2 p.272 ~ p.283
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Developmental Characteristics of Word Decoding and Text Reading Fluency among Korean Children with Developmental Dyslexia
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Pae So-Young
Shin Ga-Young
Seol Ah-Young
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Abstract
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Objectives: This study investigated word decoding ability and text reading fluency among Korean elementary school children with developmental dyslexia (DD). Dyslexic children's developmental patterns among three grade groups were compared with those of typically developing children (TD).
Methods: Fifty-eight DD (20 early, 18 middle, and 20 upper grade elementary schoolers) as well as 58 TD matched by grade, nonverbal intelligence, and listening comprehension ability participated in the study. Each child read an 80-part list, composed of 40 words and 40 nonwords, along with one grade-level text. Words and nonwords included 20 phoneme-grapheme correspondent (PGC) words as well as 20 phoneme-grapheme non-correspondent (PGNC) words.
Results: Both DD and TD had higher performance on words and PGC words than nonwords and PGNC words. DD revealed a large gap in both word and text reading when compared with TD, although the gap between the two reading groups was narrower as grades got higher. However, DD showed a bigger gap in reading nonwords compared to meaning words. As for text reading fluency, DD took a longer time and read less accurately compared to TD, although the gap between DD and TD in error rate of the total number of syllables in the texts was narrower as grades got higher.
Conclusion: It seems evident that Korean DD experience difficulties in the phonological decoding of new and novel words and in reading text fluently despite the relative consistency of Korean Hangeul. Further studies are needed to find possible subtypes of dyslexia in relation to phonological awareness, rapid automatized naming, orthographic knowledge, and morphological awareness.
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KEYWORD
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Developmental dyslexia, Korean, Word reading, Reading fluency, Phonological decoding, Nonwords
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