No studies of
READ 180 that fall within the scope of the Adolescent Literacy (AL) review protocol meet What Works Clearinghouse (WWC) evidence standards, but seven studies meet WWC evidence standards with reservations. The seven studies included 10,638 students, ranging from grade 4 to grade 9, who attended elementary, middle, and high schools in Arizona, California, Florida, New York, Ohio, Texas, and Virginia.
Based on these seven studies, the WWC considers the extent of evidence for READ 180 on adolescent learners to be medium to large for comprehension and general literacy achievement. No studies that meet WWC evidence standards with or without reservations examined the effectiveness of READ 180 on adolescent learners in the alphabetics or reading fluency domains.