How prevalent is dyslexia? A definitive answer to this question has been elusive because of the continuous distribution of reading performance and predictors of dyslexia and because of the heterogeneous nature of samples of poor readers. Samples of poor readers are a mixture of individuals whose reading is consistent with or expected based on…

This study explored the developmental trajectories and predictors of word reading and reading comprehension among young at-risk readers. In fall of first grade, 185 students identified as at-risk for reading difficulties were assessed on measures of domain-specific skills (phonological awareness, letter knowledge, and vocabulary), domain-general…

Over the past few decades, reading assessment has been pushed to the forefront of the national discussion about education. The most recent reauthorizations of the Elementary and Secondary Education Act (1994, 2001) made assessment a priority as administrators and teachers are attempting to meet increasing accountability standards, but measuring…

As part of the 2010 economic stimulus, a $55 million "Investing in Innovation" (i3) grant from the US Department of Education was awarded to scale up Reading Recovery across the nation. This paper presents the final round of results from the large-scale, mixed methods randomized evaluation of the implementation and impacts of Reading…

The purpose of this study was to examine child-level pathways in development of prealgebraic knowledge versus word-problem solving, while evaluating the contribution of calculation accuracy and fluency as mediators of foundational skills/processes. Children (n = 962; mean 7.60 years) were assessed on general cognitive processes and early…

The purpose of this study was to examine child-level pathways in development of prealgebraic knowledge versus word-problem solving, while evaluating the contribution of calculation accuracy and fluency as mediators of foundational skills/processes. Children (n = 962; mean 7.60 years) were assessed on general cognitive processes and early…

The problem of summer reading loss among low-income children has been amply documented by researchers. Over time, income-based disparities in reading achievement appear to grow more rapidly during the summer months than the academic school year. This paper describes two experiments in which teachers scaffold summer book reading with two different…

To improve the reading comprehension outcomes of children in high-poverty schools, policymakers need to identify reading interventions that show promise of effectiveness at scale. This study evaluated the effectiveness of a low-cost and large-scale summer reading intervention that provided comprehension lessons at the end of the school year and…

Researchers studied components of a two-year school-wide Striving Readers intervention aimed at bolstering middle school teachers' use of literacy strategies to raise students' reading achievement. Although students of intervention teachers had significantly higher Iowa Test of Basic Skills (ITBS) scores than students of non-participating…

The purpose of this study was to examine the extent to which teacher ratings of behavioral attention predicted responsiveness to word reading instruction in first-grade and third-grade reading comprehension performance. Participants were 110 first-grade students identified as at risk for reading difficulties who received 20 weeks of intensive…

Curriculum-based measurement in reading (CBM-R) is a widely used measure for identifying students in need of reading intervention and monitoring their progress. Despite a large base of research supporting the efficacy of CBM-R as a measure of comprehension, critics maintain that CBM-R is little more than a measure of word reading. The current…

This paper provides causal evidence to answer the question, "Does the application of a double dose of literacy instruction in middle school improve student performance on subsequent academic outcomes?" The focus of this paper is on an intervention where the second dose of literacy instruction uses research-based instructional strategies,…

The stability of reading performance, as measured by the Metropolitan Achievement Tests, Iowa Tests of Basic Skills, and Iowa Tests of Educational Development, was studied using students in grades 1 through 7 and grades 9 and 11. A reading vocabulary test and a reading comprehension test are included in all three test batteries. The standard…

This study investigates prospective relationships between phonemic awareness and reading performance during the first year of Finnish primary school. Pedagogical interest lay in finding out whether systematic use of phonics in reading instruction supported children's reading performance even if children can already decode. A total of 85 children…

Prior research has shown that test takers use a variety of strategies when taking passage-based reading comprehension tests. The specific effects that these alternative strategies have on actual examinee test performance are largely unknown. Evidence suggesting that performance differences exist across testing conditions would imply that the…