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Recent research has stated that early oral language acquisition difficulties are related to reading and writing difficulties. Children with developmental language disorder (DLD) experience difficulties with several dimensions of language. In this study we focus on the specific difficulties of children with DLD in spelling. We examine the impact of lexicality and length in written production of Spanish‐speaking children with DLD. A total of 18 children with language difficulties (Mage = 8;4) were compared with age‐matched children (Mage = 8;2). Participants completed a spelling‐to‐dictation task of words and pseudo‐words, where length was manipulated. A digital tablet was used to collect data and obtain measures of accuracy, latencies and total writing durations. Results showed that children with DLD produced more errors, longer latencies and longer writing durations than age‐matched children. Regarding accuracy, analysis of the errors shows that children in the control group produce few errors, most being substitutions, while children with DLD made more errors and of more varied categories. Moreover, they were more affected by length on writing accuracy than the control group. WHAT THIS PAPER ADDS: What is already known on this subject: Children with language difficulties are more likely to present reading difficulties. There are fewer studies analysing the impact of oral language difficulties in writing skills. What this paper adds to existing knowledge: The study suggests that children with oral language difficulties also have impairments in spelling, impacting on accuracy, duration and reaction time, possibly related to poor phonological working memory. What are the potential or actual clinical implications of this work?: This study highlights the need to emphasize early oral intervention and language‐related processing skills to help prevent written language difficulties. [ABSTRACT FROM AUTHOR]

This study investigated which components of the writing production process are impaired in Spanish children with developmental dyslexia (DD) aged 8 to 12 years. Children with and without dyslexia (n = 60) were assessed in their use of the lexical and the sublexical routes of spelling as well as the orthographic working memory system by manipulating lexical frequency, phonology-to-orthography (P-O) consistency, and word length in a copying task and a spelling-to-dictation task. Results revealed that children with dyslexia produced longer written latencies than chronological age-matched (CA) controls, more errors than CA and reading age-matched (RA) controls, and writing durations similar to CA controls. Latencies were more affected by frequency, consistency, and length in the DD group and the RA group than in CA controls. Children in the DD and RA groups produced longer written latencies in the copying than in the spelling-to-dictation task, while controls in the CA group were not affected by the task. Results indicate that spelling impairments in Spanish children with dyslexia affect the relative involvement of lexical and sublexical information during handwriting. Meanwhile, effects on writing speed seem to be related to deficits in reading ability, and accuracy scores seem to be poorer than expected by children's reading skill. [ABSTRACT FROM AUTHOR]

Although several studies have found that the sublexical route of spelling has an effect on handwriting movements, the ability of lexical variables to modulate peripheral processes during writing is less clear. This study addresses the hypothesis that word frequency affects writing durations only during writing acquisition, and that at some point of development, the handwriting system becomes a relatively autonomous system unaffected by lexical variables. Spanish children attending Grades 2, 4, and 6 performed a spelling-to-dictation and a copy task in which word frequency was manipulated. Results revealed that written latencies decreased with age, especially between Grades 2 and 4, and that writing durations decreased between these two groups. All these measures were longer during copying but the effect of task on written latencies and in-air pen trajectories was smaller for older children. Crucially, a significant word frequency effect on writing durations was observed only in Grade 2. This effect was marginally significant in Grade 4 and disappeared in Grade 6. However, all groups showed a similar effect of word frequency on written latencies. These findings suggest that lexical processes impact peripheral processes during writing acquisition and that this influence diminishes to eventually disappear at some point in development. [ABSTRACT FROM AUTHOR]