Resources for Literacy Learning

Core5 Enhances Reading Growth in Students with Disabilities

This randomized control trial showed that Core5 was more effective than comparable programs in leading to reading growth in students with disabilities.

LETRS 3E Logic Model

The Lexia LETRS® Program Logic Model is a detailed guide for identifying expected short-, medium-, and long-term goals for planning and implementation of the professional learning program.

Lexia LETRS® Efficacy Research

This document summarizes the efficacy research studies that demonstrate the evidence base for Lexia LETRS®.

2021-2022 Lexia® English ELPA21 Standards Progress Report

During the 2021-2022 school year, Lexia® English supported diverse learning needs and dynamic implementations reaching an estimated 7,443 students in 609 schools using the ELPA21 language proficiency standards. The outcomes were substantial—read the full results to learn more.

2021-2022 Lexia® English WIDA Standards Progress Report

During the 2021-2022 school year, Lexia® English supported diverse learning needs and dynamic implementations reaching an estimated 33,797 students in 2,047 schools using the WIDA language proficiency standards. The outcomes were considerable—read the full results to learn more.

Impact of Lexia Core5 Reading in California Schools

This school-level study describes the impact of Core5 on third grade student achievement in California between Core5 and non-Core5 schools. Results from 1,477 schools showed that schools with strong Core5 implementation had better school achievement on the third grade Smarter Balanced English Language Arts assessment than California schools that did not use Core5. Additionally, Core5 schools that had more third grade students meeting their Core5 usage targets were associated with higher third grade Smarter Balanced English Language Arts outcomes.

PowerUp US Annual Report

The research speaks for itself: the percentage of students working with fidelity on advanced skills in all three strands of Lexia® PowerUp Literacy® grew from 1% at the start of the year to 45% by the end. Read more about how Lexia PowerUp Literacy supported struggling readers in 2021-2022.

PowerUp Canada Annual Report

Canadian students who used Lexia® PowerUp Literacy® with fidelity in the 2021-2022 school year saw enormous skill growth. Eighty-six percent of students completed at least two zones of content, which accounts for at least six grade levels of knowledge growth, three years per zone. Learn more.

2021-2022 Core5 U.S. Annual Report

Report details key highlights about U.S. student usage and progress in Lexia® Core5® during the 2021-2022 school year.