Kirsty Walter

Introduction: Representations activated during hand-writing production code information on morphological structure and reflect decomposition of the root and suffix. Children with Developmental Language Disorder (DLD) have significant difficulties in spelling morphologically complex words, but previous research has not sought evidence for a morphological decomposition effect via an examination of hand-writing processes in this population. Method: Thirty-three children aged 9-10 years with DLD, 33 children matched for chronological age (CA), and 33 younger children aged 7-8 years matched for oral language ability (LA) completed a dictated spelling task (21 words; 12 with inflectional suffixes, nine with derivational suffixes). The task was completed on paper with an inking pen linked to a graphics tablet running the hand-writing software Eye and Pen. Pause analyses and letter duration analyses were conducted. Results: The three groups showed similar hand-writing processes, evidencing a morphological decomposition effect in a natural writing task. Pause durations observed at the root/suffix boundary were significantly longer than those occurring in the root. Letter durations were also significantly longer for the letter immediately prior to the boundary compared to the letter after it. Nevertheless, despite being commensurate to their LA matches for mean pause durations and letter durations, children with DLD were significantly poorer at spelling derivational morphemes. Hand-writing processes did significantly predict spelling accuracy but to a much lesser extent compared to reading ability. Discussion: It is suggested that derivational spelling difficulties in DLD may derive more from problems with underspecified orthographic representations as opposed to hand-writing processing differences.

Children who struggle with writing are a heterogeneous group and may experience difficulties in a range of domains, including spelling, reading, and oral language. These difficulties are reflected in their writing and may influence their responsiveness to writing interventions. The effectiveness of a targeted sentence-combining intervention to improve the writing skills of 71 struggling writers, aged 7 to 10 years, was compared with a spelling intervention and a business as usual (waiting list) control condition. Some struggling writers also performed poorly on measures of reading and oral language. Children's performance on a range of writing measures were assessed at baseline (t1), immediate post-test (t2) and delayed post-test (t3). Children receiving the sentence-combining intervention showed significant improvements in the sentence combining measure at t2 and t3 compared to both the spelling intervention and waiting list controls. Exploratory regression analyses found that children in the sentence-combining intervention, with a low t1 sentence combining score, low reading skills or better t1 spelling skills, were more likely to show improvements at t2. Findings indicate that when devising interventions for struggling writers, specific profiles of skills should be considered. Specifically, sentence combining may be more appropriate for SWs whose primary area of difficulty is reading, rather than poor spelling or oral language.

The assessment of children's writing raises technical and practical challenges. In this paper we examine the potential use of a curriculum based measure for writing (CBM-W) to assess the written texts of pupils in Key Stage 2 (M age 107 months, range 88 to 125). Two hundred and thirty six Year three, five and six pupils completed a standardized assessment of writing quality. Pupils also responded to two writing probes, one expository and one narrative, at baseline and five months later. In response to the probe pupils wrote for five minutes. Transcribed texts were scored for productivity (total words produced, correct word sequences, number of punctuation marks and sentences produced) and accuracy (proportion of words spelled correctly, correct word sequences and punctuation marks). The CBM –W measures were differentially sensitive to development and showed construct validity as evidenced by their association with the norm- referenced test measuring writing quality. Change over time was also evident and significant differences between narrative and expository texts were found. Pupils with special educational needs scored significantly more poorly on the CBM-W. Potential implications for research and practice are considered.

Children with Specific Language Impairment (SLI) are known to have difficulties with spelling but the factors that underpin these difficulties, are a matter of debate. The present study investigated the impact of oral language and literacy on the bound morpheme spelling abilities of children with SLI. Thirty-three children with SLI (9–10 years) and two control groups, one matched for chronological age (CA) and one for language and spelling age (LA) (aged 6–8 years) were given dictated spelling tasks of 24 words containing inflectional morphemes and 18 words containing derivational morphemes. There were no significant differences between the SLI group and their LA matches in accuracy or error patterns for inflectional morphemes. By contrast when spelling derivational morphemes the SLI group was less accurate and made proportionately more omissions and phonologically implausible errors than both control groups. Spelling accuracy was associated with phonological awareness and reading; reading performance significantly predicted the ability to spell both inflectional and derivational morphemes. The particular difficulties experienced by the children with SLI for derivational morphemes are considered in relation to reading and oral language.

Writers typically produce their writing in bursts. In this article, the authors examine written language bursts in a sample of 33 children aged 11 years with specific language impairment. Comparisons of the children with specific language impairment with an age-matched group of typically developing children (n = 33) and a group of younger, language skill-matched children (n = 33) revealed the role of writing bursts as a key factor in differentiating writing competence. All the children produced the same number of writing bursts in a timed writing task. Children with specific language impairment produced a shorter number of words in each burst than did the age-matched group but the same as the language skill-matched group. For all groups, spelling accuracy and handwriting speed were significant predictors of burst length and text quality. The frequency of pauses at misspellings was related to shorter bursts. These results offer support to Hayes's model of text generation; namely, burst length is constrained by language and transcription skills.