One study of
LiPS® that falls within the scope of the Students with Learning Disabilities review protocol meets What Works Clearinghouse (WWC) evidence standards. The study included 50 students with learning disabilities from eight to ten years of age in three elementary schools in Florida.
Based on this study, the WWC considers the extent of evidence
for LiPS® on students with learning disabilities to be small for alphabetics, reading fluency, reading comprehension, writing, and math. No studies that meet WWC evidence standards with or without reservations examined the effectiveness of LiPS® on students with learning disabilities in the general reading achievement,
science, social studies, or progressing in school domains.