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KMID : 1036820160210030425
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Communication Sciences & Disorders
2016 Volume.21 No. 3 p.425 ~ p.435
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Prelinguistic Communicative Factors Discriminating between Developmental Language Delay and Typical Language Development at 2 Years in Preterm Toddlers
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Lee Hyo-Joo
Lee Yoon-Kyoung
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Abstract
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Objectives: Prelinguistic communicative behaviors are important discriminating factors discriminating language delay from typical development. The purpose of this study was to examine the prelinguistic communicative behavior that most effectively distinguish the DLD from TD at 2 years in preterm toddlers.
Methods: The participants were 47 preterm toddlers with a first evaluation at 15 to 18 months and a second at 24 months. Based on the assessment results, the participants were classified into 3 groups: ‘typical- typical’, ‘delay- typical’, and ‘delay-delay’. The frequency and type of intentional communicative behavior, the frequency and type of gestures, the frequency of vocalizations, and the types of consonants were measured from the behavior samples that were collected during free-play with caregiver. Discriminant analysis was conducted for identifying factors to discriminate between DLD and TD.
Results: The ‘delay-delay’ group showed a significantly lower frequency of intentional communicative behavior, gestures, vocalizations, and a lower number of consonants. The results of discriminant analysis indicated that the frequency of gestures and intentional communicative behavior, the types of consonants were most significant to discriminate the subsequent presence of language delay in preterm toddlers.
Conclusion: We discuss the prelinguistic communication factors for distinguish the DLD group from TD in preterm toddlers based on these results.
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KEYWORD
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Preterm toddler, Prelinguistic communicative factor, Discriminant analysis
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