Background: Young children clearly know quite a bit about the conventions of written language; for instance, 5-year-old children are sensitive to the fact that words tend to include both consonants and vowels, rather than just one or the other. The core theoretical debate lies in whether this understanding of sub-lexical orthographic regularities…

The problem addressed through this study was that Grades 2-4 teachers in a New England urban elementary school district are challenged to remediate student learning loss in reading achievement. In the district, there was documented low reading proficiency for Grades 2-4 over the past 5 years, including before, during, and after the COVID-19…

We examined how children (N = 448) with separate or co-occurring developmental language disorder (DLD) and dyslexia performed on school-based measures of academic functioning between second and fourth grades. Children were recruited from 1 school district in the U.S. state of South Carolina via classroom screenings and met common research criteria…

South Carolina's public education system is broken. For the past several years, the State of South Carolina and the nation have somehow managed to do the nearly impossible. Both have produced more English Language Learning (ELL) students to be proficient in English Language Arts (ELA) (i.e., reading, writing, and usage) than native English…

While the ongoing academic impacts of the COVID pandemic in grades 3-8 has been well documented, far less is known about its effects on students who were in pre-K or kindergarten when the pandemic started in March 2020. In this brief, we focus on students who were in first and second grade in the 2021-22 school year, and for whom the majority of…

At a Title I School located in Central Georgia, 91% of the student population is performing below grade level. Lexia-Core 5 is a reading software program purchased by a Central Georgia school district to help students improve in reading. The purpose of this quantitative descriptive and causal-comparative study was to examine the impact of the…

Analyses were conducted with second graders, drawn from an ongoing multi-cohort randomized controlled trial (RCT), who had been identified for RCT entry based on comorbid reading comprehension and word-problem solving difficulty. To estimate pandemic learning loss, we contrasted fall performance for 3 cohorts: fall of 2019 (pre-pandemic; n = 47),…

Bayesian regression has emerged as a viable alternative for the estimation of curriculum-based measurement (CBM) growth slopes. Preliminary findings suggest such methods may yield improved efficiency relative to other linear estimators and can be embedded into data management programs for high-frequency use. However, additional research is needed,…

Literacy levels for children leaving primary school, internationally, remain a cause for concern. There is a limited evidence base for whole school reading programmes and resources in the first two years of primary school compared to studies of interventions for children with reading difficulties. This study used a longitudinal randomised control…

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…

Although research related to the Science of Reading has documented the positive effects of explicit, systematic reading instruction for all students, students from historically marginalized groups often experience differential opportunities to learn and are likely to perform lower than their peers on large scale measures of reading achievement.…

LXD Research analyzed data from 945 students in kindergarten who were Below or Well Below Benchmark at the beginning of the year and participated in using the Phonological Awareness (PA) Lessons Deluxe Package as an intervention in CA in Fall 2021. The product is a Tier 2 or Tier 3 intervention for grades K-2 that includes lessons and…

Extensive research has been conducted on summer reading loss among children from low-SES families and children who are struggling readers (Alexander, Entwisle, & Olson, 2001; Allington, et al., 2010; Compton-Lilly, Caloia, Quast, & McCann, 2016; Cooper, Nye, Charlton, Lindsay, & Greathouse, 1996; Heyns, 1978; Parker & Reid, 2017).…

This is the technical index for the research brief "Education's Long COVID: 2022-23 Achievement Data Reveal Stalled Progress toward Pandemic Recovery." Using data from 6.7 million U.S. public school students currently in grades 3-8, the study examined academic gains in the 2022-23 school year relative to pre-pandemic years. It also…

This study examined the longitudinal prediction of decoding, oral reading fluency (ORF), and bilingual language proficiency (BLP) on student reading comprehension (RC) outcomes in Spanish and in English. Participants were first-grade Latinx students attending bilingual programs. Findings indicated that BLP initial status and gains were significant…