No studies of
Success for All® that fall within the scope of the English Language Learners review protocol meet What Works Clearinghouse (WWC) evidence standards, and one study
meets WWC evidence standards with reservations. This study included 2,890 English language learners from kindergarten through fifth grade attending Miami-Dade County Public Schools. This study examines the effectiveness of
Success for All® against two comparison groups. In the first comparison, the 1,441 English language learners in schools implementing
Success for All® were compared to 694 English language learners in schools implementing the regular district reading program, Comprehensive Reading Plan. A second comparison involved 755 English language learners in schools implementing the SRA/McGraw Hill Reading Mastery program.
Based on this one study, the WWC considers the extent of evidence for Success for All® on English language learners to
be small for English language development. The one study that meets WWC evidence standards with reservations did not examine the effectiveness of Success for All® in the reading achievement or mathematics domains for English language learners.