The purpose of this randomized control trial (RCT) was to examine the impact of one-to-one high-dosage tutoring on reading achievement of kindergarten and first grade students, many at risk of reading failure. This nearly two-year study collected reading assessment data from 185 students, from across 13 classrooms, randomly assigned to either the…

Despite an abundance of research centered on reading and applied behavior analysis, minimal literature exists on the use of applied behavior analysis methodologies to treat reading disabilities. This dissertation-in-practice action research study examined the extent to which a behavior-analytic intervention infused with the science of reading…

Despite historically high literacy rates, there has been declining reading proficiency amongst students in Iceland. This decline has caused concern and created a need to better understand foundational reading growth in the Icelandic school context. This study aimed to evaluate reading growth patterns in letter sound fluency, nonsense word fluency,…

This study used data from the U.S. state of Michigan schools participating in the "Reading First" program to examine the stability of students' disability status in Grades 1 to 3. Reading First aimed to improve at-risk students' reading comprehension through research-based instruction. We analyzed how changes in students' disability…

Michigan's Great Start Readiness Program (GSRP) is a state-funded pre-K program that serves at risk four-year-old children across the state. Utilizing longitudinal data from 1,394 children in a mid-sized urban school district, we conducted regression analyses and piecewise linear growth models to examine the growth trajectory of GSRP children and…

Self-efficacious children are expected to be more task-focused in challenging achievement situations and consequently have better chances of overcoming learning difficulties than children who have lower self-efficacy. The present study investigates this presumption with Finnish-speaking first graders struggling with reading acquisition (N = 285).…

This study examined the role of fidelity in the reading outcomes within a Tier 2 intervention implemented by Spanish kindergarten and first grade school teachers. For this purpose, differences in reading performance growth were analyzed among at-risk students who received a Tier 2 intervention with high fidelity, at-risk students who received the…

In order to effectively teach reading, it is not enough for a teacher to possess knowledge and skills alone. It is equally important to use evidence-based instructional approaches and interventions, especially when working with at-risk or struggling students. Without appropriate instructional materials and contexts, even the most competent teacher…

Research Findings: This study used data from a large-scale kindergarten entry assessment (KEA) to understand how well two state screening measures, administered at school entry, predicted the first-grade reading outcomes of a large sample of first-time kindergarteners (N=5,480) at high risk for future reading failure. We examined young children's…

Research Findings: Universal screening is the first stage in identifying students at risk for reading difficulties within a Response to Intervention model. However, there is a lack of validated screening tools for assessing reading abilities in first-grade students from Spain. This pilot study examines the technical adequacy, classification…

LXD Research analyzed data from 462 students in first grade who were Below or Well Below Benchmark at the beginning of the year and participated in using the Phonics Lesson Library and the Phonics Chip Kit as an intervention in CA for the 2021-2022 school year. The product is a Tier 2 or Tier 3 phonics intervention using lessons and manipulatives…

Reading and math attainment develop during elementary grades. Questions remain, though, about the co-developmental nature of the relation between reading and math. This study examined dynamic, longitudinal pathways between reading and math in first through fourth grades. Participants of the study were 554 academically at-risk children…

The purpose of this study was to examine the power of phonological awareness and rapid naming longitudinally in predicting reading achievement in a highly transparent orthography, Turkish. Children were followed in kindergarten and first grade and assessed at four time points. While phonological awareness and rapid naming skills of children were…

This article reports on a study designed to determine if the lowest achieving first-grade students who were identified by their school districts as at-risk for dyslexia can be distinguished from students who have initial reading and writing difficulties but did not present dyslexia characteristics. Thirty-six first-grade students from two…

This study investigated the stability of latent classes of students with learning disabilities among a heterogeneous sample of elementary-aged children whose first language is Spanish. To this end, children (N = 284) in Grades 1, 2, and 3 at Wave 1 (Year 1) were administered a battery of vocabulary, reading, math, and cognitive measures…