Two studies were conducted of students with and without persisting Specific Learning Disabilities (SLDs-WL) in Grades 4 to 9 (M = 11 years, 11 months) that supported the hypotheses that CELF 4 parent ratings for listening (language by ear), speaking (language by mouth), reading (language by eye), and writing (language by hand) were correlated with…

In a 5-year longitudinal study of typical literacy development (Grades 1-5 or 3-7), relationships were examined between (a) parental responses to questionnaires about home literacy activities and ratings of children's self-regulation at home, both completed annually by the same parent, and (b) children's reading and writing achievement assessed…

To identify effective treatment for both the spelling and word decoding problems in dyslexia, 24 students with dyslexia in grades 4 to 9 were randomly assigned to treatments A (n = 12) or B (n = 12) in an after-school reading-writers' workshop at the university (thirty 1-h sessions twice a week over 5 months). First, both groups received step 1…

In Study 1, children in grades 4-9 (N = 88, 29 females and 59 males) with persisting reading and/or writing disabilities, despite considerable prior specialized instruction in and out of school, were given an evidence-based comprehensive assessment battery at the university while parents completed questionnaires regarding past and current history…

Gender differences in mean level of reading and writing skills were examined in 122 children (80 boys and 42 girls) and 200 adults (115 fathers and 85 mothers) who showed behavioral markers of dyslexia in a family genetics study. Gender differences were found in writing and replicated prior results for typically developing children: Boys and men…

Finds greater interference for words than for single letters and letter-clusters in elementary students. Finds a developmental trend from relative skill in word-level orthographic-phonological correspondence in second graders to relative skill in subword-level correspondences in sixth graders. Notes that multiple orthographic codes were correlated…

Examined the relationship between handwriting style and handwriting speed and legibility. Analysis of three writing samples (narrative, expository, and copying) from 600 fourth to ninth graders indicated that students who used a combination of manuscript and cursive letters were the most fluent handwriters. Papers written with mixed letters…

Examined whether writing and working memory (WM) were related to general or process-specific system, whether WM tasks operated independently of phonological short-term memory (STM), and whether WM predicted writing variance beyond that predicted by reading. Found a four-factor model reflecting phonological STM, verbal WM span, executive…

Finds that the writing system and the reading system share many of the same orthographic, phonological, and working memory subprocesses but that the patterns of concurrent relationship between these subprocesses and writing and between these subprocesses and reading differ. Suggests that writing and reading draw upon the same as well as unique…

Poor spellers in second grade (N=128) participated in sessions that included direct instruction in the alphabet principle, modeling of different approaches for developing connections between spoken and written words, and practice in composing. Results of this multilayered approach are discussed, including evidence that training in spelling…

The recent reauthorization of the Individuals With Disabilities Education Improvement Act of 2004 (IDEA; 2004) is first discussed in its historical context. Then, a programmatic line of research (funded by the National Institute of Child Health and Human Development since 1989) is described that is relevant to a proposed model for universal…

Third graders with low compositional fluency were randomly assigned to four time-equated treatments in an instructional experiment: spelling, composing, combined spelling plus composing, and treated control. All treatments increased compositional fluency. Results are related to the simple view of writing that integrates diverse theoretical…

Three studies evaluated Tier 1 early intervention for handwriting at a critical period for literacy development in first grade and one study evaluated Tier 2 early intervention in the critical period between third and fourth grades for composing on high stakes tests. The results contribute to knowledge of research-supported handwriting and…

A decade-long research program is described that has focused on the development of the functional writing systems and its connections during the development with the aural/oral language and reading systems in school-age children. Applications of this research to assessment and educational intervention for specific writing disabilities are…

Multiple group structural equation modeling was used to analyze structural relationships between latent factors underlying writing-related developmental skills and component writing skills in grades 1 through 6 for 600 students (50 boys and 50 girls at each grade level). Results for handwriting, spelling, and compositional quality are discussed…