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…

Sequential regression was used to evaluate whether language-related working memory components uniquely predict reading and writing achievement beyond cognitive-linguistic translation for students in Grades 4 through 9 (N = 103) with specific learning disabilities (SLDs) in subword handwriting (dysgraphia, n = 25), word reading and spelling…

The same working memory and reading and writing achievement phenotypes (behavioral markers of genetic variants) validated in prior research with younger children and older adults in a multi-generational family genetics study of dyslexia were used to study 81 adolescent and young adults (ages 16 to 25) from that study. Dyslexia is impaired word…

Examines intermediate grade students' intraindividual differences across different levels or units of written language in sequencing the elements of written language. Finds that performance at the word level does not predict performance at the sentence or paragraph levels and that performance at the sentence level does not predict performance at…

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…

Administers 23 psychometric measures of reading, writing, and related language processes to 102 elementary students and their parents. Notes results are consistent with claim of functional systems theory that the same language processes are orchestrated flexibly depending on task at hand. Finds number of language deficits uniquely predicted…