Evidence-based, Research-proven

Lexia programs are proven to improve learning outcomes required by ESSA federal mandates.

Strong
Moderate
Promising

Strong

Strong evidence is defined as well-designed, well-implemented experimental studies that include randomly assigned treatment and control groups to eliminate selection biases.

Use of Lexia® Core5® Reading Supports the Development of Early Literacy Skills

In a study with young children identified as at risk for for reading difficulties, those who used Lexia® Core5® Reading outperformed those who did not use the program on tests of pre-literacy skills.

Lexia® Core5® Reading Supports Reading Gains for Low-SES Students

First- and second-grade students who used Lexia® Core5® Reading in a low-SES school showed significantly greater reading gains than students in the same school who did not use the program.

Benefits of Lexia® Core5® Reading in a Low SES School

Second-grade students in a Title I school who used Lexia® Core5® Reading significantly outscored students who did not use Core5 on a standard reading assessment.

Explore More Research

Moderate

Moderate evidence is defined as well-designed, well-implemented quasi-experimental studies with treatment and control groups that may not be randomly assigned.

Lexia® Core5® Reading Benefits Students in Kindergarten and First Grade

A large-scale study found that kindergarten and first-grade students who used Lexia® Core5® Reading had significantly higher scores than nonCore5 students on a standardized reading test.

Explore More Research

Promising

Promising studies include correlational evidence that the program has an impact. These studies may not include a control group, but selection effects are addressed statistically.

Lexia® Core5® Reading Supports Reading Growth for 3 School Years

Students who used Lexia® Core5® Reading throughout three school years showed significant gains on a standardized reading test each year, with nearly all students scoring in the average range or above by the end of the third year.

Explore More Research

More About Our Approach

Products