State legislators recognized that students in the United States continue to struggle with reading and have begun implementing laws requiring schools to use science of reading-aligned curriculum when teaching reading (Schwartz, 2022). Many students lack the foundational skills to even begin learning how to read in grades K-3 (Kuhfeld et al., 2022).…

The ongoing literacy crisis in the U.S. highlights an urgent need for effective, scalable literacy instruction. REED Charitable Foundation (RCF) is a non-profit organization that provides structured literacy training informed by Orton-Gillingham, along with ongoing professional coaching and comprehensive implementation support to help all students…

This longitudinal quantitative study determined the impact of a summer mathematics academy for early learners on their number sense and how their number sense compared to that of their peers who did not attend the academy. The Texas Early Mathematics Inventory -- Progress Monitoring (TEMI-PM) was used to measure students' number sense. Results…

Determining the effectiveness of core mathematics curricula is foundational to evidence-based practice. Examining effectiveness heterogeneity is also crucial to better understanding mathematics achievement among English language learners (ELLs). In this study, we used a quasi-experimental design (difference-in-differences) to examine the impact of…

Although proponents suggest that universal social-emotional learning (SEL) programs promote academic achievement, few studies have directly tested these outcomes under routine conditions in schools. Forty first-grade classrooms participated in an effectiveness trial in which schools (N = 13) were randomly assigned to implementation of a universal…

This study examined the impact of Classworks® Individualized Learning math instruction on second-grade students performing below the 25th percentile in math. The research, conducted during the 2021-2022 school year, involved 1,367 students from 45 schools across seven districts. A quasi-experimental design compared 941 students who had any use of…

Determining the effectiveness of core mathematics curricula is foundational to evidence-based practice. Examining effectiveness heterogeneity is also crucial to better understanding mathematics achievement among English language learners (ELLs). In this study, we used a quasi-experimental design (difference-in-differences) to examine the impact of…

The purpose of this study was to compare student growth of SCSD-7 students on the MAP (Measures of Academic Progress) reading assessment to otherwise similar students who did not use Istation. This study followed two cohorts of elementary school students over three years (2016-17 through 2018-19) to assess the effect of Istation on reading…

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…

This project aimed to evaluate the effectiveness of an academic success center at a Japanese public university, in terms of the reciprocal learning that took place during academic writing and reading tutorials and the academic achievement of tutees. Using a multi-method design, the researchers analyzed feedback data from tutors and tutees, and…

Georgia's Pre-K Longitudinal Study followed a statewide sample of 1,169 children who attended Georgia's Pre-K Program in 2013-14 through their 4th grade year in 2018-19. The study was conducted by researchers at the Frank Porter Graham (FPG) Child Development Institute at the University of North Carolina at Chapel Hill. The following summary…

The engage2learn approach to educator support provides an in-person and virtual coaching system that builds capacity and engagement in public schools. Engage2learn hired LXD Research to conduct an independent evaluation and analysis of NWEA Math and Reading data collected during the 2021-2022 school year. The goal was to measure how engage2learn…

New Classrooms Innovation Partners was awarded an Investing in Innovation (i3) grant from the U.S. Department of Education to implement its "Teach to One: Math" (TtO) model in five schools in Elizabeth, New Jersey, for three academic years, beginning in September 2015 and continuing through June 2018. The Consortium for Policy Research…

The purpose of this action research study is to identify, implement, and evaluate best practices in reading improvement in third grade at Greenleaf Upper Elementary (pseudonym) in support of a process of continuous improvement. The study followed a mixed methods design. The student participants in this study were 47 third grade students who…

School choice has long been a subject of robust debate. Private school vouchers--programs providing public funds for students to attend K-12 private schools--tend to be the most contentious form of school choice. Over the past three years, the research team has released a series of reports examining how the Louisiana Scholarship Program (LSP) has…