This meta-analysis included experimental or quasi-experimental intervention studies conducted between 1980 and 2020 that aimed to improve reading outcomes for Grade K-5 students with or at risk for dyslexia (i.e., students with or at risk for word reading difficulties, defined as scoring at or below norm-referenced screening or mean baseline…

The purpose of this paper is to describe what we know and what we still need to learn about literacy intervention for children who experience significant difficulties learning to read. We reviewed 14 meta-analyses and systematic reviews of experimental and quasi-experimental studies published in the last decade that examined the effects of reading…

In this article, I provide an examination of research evidence concerning the effects of classroom instruction (Tier 1) for students with dyslexia and other reading problems. I discuss the suitability and limitations of different types of research evidence that may be used to determine how best to support the learning of these students in the…

More than 800,000 students with autism spectrum disorder (ASD) are served in U.S. public schools, a number that has increased annually for almost 20 years since Individuals with Disabilities Education Act (IDEA) included ASD as an eligibility category. These students often experience widespread and persistent reading comprehension challenges. A…

Researchers disagree about the value of controlling the decodability of texts for students with reading difficulty, specifically what type of text they should read: "decodable texts" (words limited to taught patterns), "nondecodable" texts (those not limited by instruction), or "both." We analyzed the effects of…

In this article, we review research on the outcomes of diverse reading programs on the achievement of struggling readers in elementary schools. Sixty-five studies of 51 different programs met rigorous standards. Eighty-three percent were randomized experiments and 17% quasi-experiments. Outcomes were positive for one-to-one tutoring and were…

The simple view of reading is commonly presented to educators in professional development about the science of reading. The simple view is a useful tool for conveying the undeniable importance--in fact, the necessity--of both decoding and linguistic comprehension for reading. Research in the 35 years since the theory was proposed has revealed…

Recently, there has been growing concern about how to most effectively support the literacy development of beginning and struggling readers with regard to helping them learn to effortlessly identify the huge number of words that proficient readers ultimately learn to read with automaticity. Some, noting the critical importance of phonics…

Recent initiatives in the United States and United Kingdom have added greatly to the amount and quality of research on the effectiveness of secondary reading programs, especially programs for struggling readers. In this review of the experimental research on secondary reading programs, the authors focused on 69 studies that used random assignment…

This review examines the effectiveness of educational technology applications in improving the reading achievement of struggling readers in elementary schools. The review applies consistent inclusion standards to focus on studies that met high methodological standards. A total of 20 studies based on about 7,000 students in grades 1-6 were included…

Current theoretical interpretations of naming speed and the research literature on its relation to reading are reviewed in this article. The authors examine naming speed's effects across languages and the shape of its relationship to reading. Also considered is the double-deficit hypothesis, by which students with both slow naming speed and low…

Presents a framework for conceptualizing development of individual differences in reading ability that emphasizes the effects of reading on cognitive development and on "bootstrapping" relationships involving reading. Uses the framework to explicate some persisting problems in the literature on reading disability and to conceptualize…

Reviews attempts to adequately define dyslexia with a focus on recent efforts at developing a nosology of dyslexia and discusses the neurological basis of reading and severe reading failure with an emphasis on validating evidence provided through brain-mapping procedures and postmortem studies. (HOD)

Explains the origin and use of reading expectancy formulas and examines to what extent different formulas can actually predict reading achievement. (AEA)