In this dissertation I report findings from two studies of the literacy abilities of children with Williams syndrome (WS), a genetic disorder associated with intellectual disability. I had two overarching goals: 1) evaluate the applicability of theories of reading and spelling acquisition developed based on typically developing children to…

This study described the features of writing instruction in widely used kindergarten English Language Arts programs and examined their alignment with evidence-based, best-practice guidelines. Three popular curricula were selected for analyses: Reading Wonders, Journeys, and Reading Street. Our coding of teacher manuals focused on instructional…

The purpose of the present study was to examine the effects of a brief experimental intervention that integrated spelling practice into a systematic phonics approach to initial reading instruction for at-risk children. The effects of this intervention were studied by means of a randomized controlled trial design that compared the experimental…

Purpose: Children learning to read in English must learn to read words with varying degrees of grapheme-phoneme correspondence regularity, but there is very little research comparing methods of instruction for words with less predictable or irregular spellings. Therefore, we compared three methods of instruction for beginning readers. Method:…

Learning the relationships between letters and sounds is a key component of early literacy development and a central aim during the first year of school. Introducing one new letter a week is the most common approach in many countries, but little is known about how the pace of letter instruction contributes to the development of early literacy…

This study examined the effects of early phonological training on emergent phonological and reading skills. Children (N = 364) were randomly assigned in small groups to a phonological training group (n = 117), or a control group (n = 247) including both a non-phonological training group and a non-trained control group. The phonological training…

The purpose of the current study was to examine whether morphological awareness measured before children are taught to read (Kindergarten in Israel) predicts reading accuracy and fluency in the middle of first grade, at the very beginning of the process of learning to read pointed Hebrew -- a highly transparent orthography, and whether this…

For students to be able to read with greater fluency and comprehension, they must first develop their understanding of morphology, the knowledge of meaningful word parts in the language. To develop this understanding, students must learn the following: letter patterns and word parts, the relation of sounds to letters, and high-frequency word…

An important characteristic of expert teaching is the ability to adapt instruction to meet learners' needs. One way this type of ownership of instruction happens is through teachers interactively constructing knowledge about pedagogical content with others. In this article, the authors looked at how a group of thirteen participants enrolled in an…

In this case study, Angela Helsloot, Principal at Allambie Heights Public School, on the Northern Beaches of Sydney, uses data from standardised tests and benchmark reading assessments across the school to show the positive impact that Sounds-Write instruction has had in Kindergarten and Year 1. [For the complete volume, "Systematic Synthetic…

The purpose of this study was to examine the effects of Build a Word-Easy Spelling with Phonics, an electronic application of the word box intervention, on the acquisition, maintenance, and generalization of letter-sound correspondences for Learners of English as an Additional Language (LEALs). A single-subject multiple probe experimental design…

Although several measures exist for frequently monitoring early reading progress, little research has specifically investigated their technical properties when administered on a frequent basis with kindergarten students. In this study, kindergarten students (N = 137) of whom the majority was receiving supplemental intervention for reading skills…

In a randomized-controlled trial we tested a computer-assisted intervention for the prevention of reading difficulties, delivered by nonprofessional tutors, running from kindergarten to halfway Grade 2. The full sample included 123 prereaders (M = 5; 6 years; 56 intervention; 67 controls) with low preliteracy skills. Parents were sent a…

Spelling is one of the most challenging areas for students with learning disabilities (LD), and improving spelling outcomes for these students is of high importance. In this synthesis, we examined the effects of spelling and reading interventions on spelling outcomes for students with LD in Grades K through 12. A systematic search of peer-reviewed…

The goal was to assess the role of invented spelling to subsequent reading and spelling as proposed by the Nested Skills Model of Early Literacy Acquisition. 107 English-speaking children were tested at the beginning of kindergarten and grade 1, and at the end of grade 1. The findings provided support for the proposed model. First, the role played…