Delayed early vocabulary development in children at family risk of Dyslexia

Autor: Ben Maassen, Aryan van der Leij, Evelien Krikhaar, Elise de Bree, Peter F. de Jong, Sietske van Viersen, Mathilde G. E. Verdam
Přispěvatelé: Medical Psychology, Graduate School, APH - Personalized Medicine, APH - Mental Health, APH - Methodology, Developmental Disorders and Special Education (RICDE, FMG), Methods and Statistics (RICDE, FMG)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of speech, language, and hearing research, 60(4), 937-949. American Speech-Language-Hearing Association (ASHA)
Journal of Speech, Language, and Hearing Research, 60, 937-949. American Speech-Language-Hearing Association (ASHA)
Journal of speech, language, and hearing research, 60(4), 937-949. AMER SPEECH-LANGUAGE-HEARING ASSOC
Journal of Speech, Language, and Hearing Research, 60, 4, pp. 937-949
Journal of Speech, Language, and Hearing Research, 60, 937-949
ISSN: 1092-4388
Popis: Purpose This study aimed to gain more insight into the relation between vocabulary and reading acquisition by examining early growth trajectories in the vocabulary of children at family risk (FR) of dyslexia longitudinally. Method The sample included 212 children from the Dutch Dyslexia Program with and without an FR. Parents reported on their children's receptive and expressive vocabulary size at ages 17, 23, 29, and 35 months using the Dutch MacArthur Communicative Development Inventories. Dyslexia status at the end of Grade 2 (8 years) rendered 3 groups: FR-dyslexic ( n = 51), FR-nondyslexic ( n = 92), and typically developing–nondyslexic (TD) children ( n = 69). Results Repeated measures analyses showed that FR-dyslexic children had lower receptive vocabulary scores from 23 months onward and lower expressive scores from 17 months onward than FR-nondyslexic children. Latent growth curve modeling showed lower initial growth rates in FR-dyslexic children, followed by partial recovery, indicating a delayed increase in receptive and expressive vocabulary. FR-nondyslexic and TD children did not differ. Conclusions Early deficits in receptive and expressive vocabulary are associated with later reading. Early vocabulary growth of FR-dyslexic children is characterized by a delay but not deviance of growth. Vocabulary can be considered an additional risk factor for dyslexia.
Databáze: OpenAIRE