Accelerating Reading Gains with One95: Two-Year Efficacy Study for Kindergarten and First Grade (2020-2022)

This study explores the efficacy of core phonics and intervention products by 95 Percent Group, LLC ("One95"), drawing on the relationship between technology, the science of reading, and learning sciences. Researchers analyzed data from 440 K-1 students in Maryland that rolled out One95 over two school years, fall 2020 to spring 2022. The sample included students who were 54% Black, 15% ELL, 8% SPED, and 75% Economically Disadvantaged. According to iReady® Diagnostic Reading, One95 students outperformed similar students who did not receive the program in the first year. In the second year, both groups used One95, and students with two years of use showed earlier growth and doubled the effect sizes than those with one year of use (0.64 vs. 0.31). Black One95 students also showed stronger reading outcomes than their comparison group peers by spring 2022. These results support that One95 positively and significantly impacted student literacy achievement.