95 Percent Group's Efficacy Studies

95 Percent Group regularly sponsors third-party research by independent literacy evaluation firms to measure the effectiveness of our programs. Researchers have completed several large-scale research studies with more than 10,000 students nationally. They were designed with guidance from the Every Student Succeeds Act (ESSA) and meet the highest levels evidence: strong, moderate, and promising. Several districts across the country have participated in these efficacy studies to determine if schools using 95 Percent Group’s instructional materials and assessments would demonstrate higher overall reading achievement by the end of the school year. Effectiveness was studied for Tier 2 and 3 intervention groups and Tier 1 whole-class instruction. Studies included the voices and experiences of teachers, interventionists, and reading coaches.  

Overwhelmingly the results indicate that our products provide the explicit instruction needed to support the development of foundational skills in reading and lead to higher achievement by the end of the school year. 

95 Percent Group Phonics Core Program Meets Every Student Succeeds Act (ESSA) Standards of Evidence, Earns Listing for Tier 1 Instruction 

Rigorous independent efficacy research confirms phonics program accelerates reading improvement for all K-2 students 

95 Phonics Core Program is now listed on the Evidence for ESSA website for Tier 1, Whole-Class Instruction. The rating confirms that the program’s research meets federal standards under the Every Student Succeeds Act (ESSA) for demonstrating evidence of efficacy.

Based at Johns Hopkins University’s Center for Research and Reform in Education, Evidence for ESSA was established following the 2015 Congressional approval of the federal act and provides independent, authoritative information on program research that meets the ESSA evidence standards. As a leading resource in the field, the website enables educators and communities to select effective instructional tools to improve student outcomes.