Resources for Literacy Learning

Lexia® PowerUp Literacy® Efficacy Research

This document summarizes the efficacy research studies that demonstrate the evidence base for Lexia® PowerUp Literacy®. It includes studies published in peer-reviewed scientific journals, evaluations conducted by external researchers unaffiliated with Lexia®, doctoral dissertations, and internal research and reports.

Lexia® LETRS® Efficacy Research

This document summarizes the efficacy research studies that demonstrate the evidence base for Lexia® LETRS®. It includes studies published in peer-reviewed scientific journals, evaluations conducted by external researchers unaffiliated with Lexia®, and doctoral dissertations.

Phonics Training With Core5 Improves Reading in Children With Neurofibromatosis Type 1

Children with neurofibromatosis type 1 (NF1) often display difficulties with reading skills. This study found that children with NF1 were able to make gains across multiple reading-related measures following eight weeks of daily Lexia® Core5® Reading use.

Case Study of Kindergarten Students Advancing Through Core5 Levels

This case study investigated the in-program progress of kindergarten students who began working below grade level in Lexia® Core5® Reading. It was found that the students showed disparate profiles in advancing into kindergarten levels in the program.

Evaluation of Lexia English in the Development of Oracy and Academic Language in English Learners

A large-scale study found English Learners who used Lexia English Language Development™ significantly outperformed non-users on the English Language Proficiency Assessment for California, with the largest group difference occurring in the oral language domain.

Effects of Lexia LETRS Professional Learning—with or without Coaching—on Reading Instruction

In this study, educators with or without literacy coaching reported Lexia® LETRS® professional learning training deepened their understanding of reading, though student gains in decoding were greater in coaching classrooms. Educators in both groups reported LETRS deepened their understanding of reading, though phonics instruction and student gains in decoding were greater in coaching classrooms.