Original Research on Science of Reading Interventions & RAVE-O

Six NICHD-funded randomized controlled trials, run across two decades, form the evidence base behind RAVE-O. Students receiving the multi-component intervention outperformed control groups on decoding, vocabulary, and comprehension — with effect sizes rarely seen in reading research.

This piece summarizes the trial designs, the populations studied, and the specific outcome measures used, for researchers and administrators who want to evaluate the evidence directly rather than take marketing claims at face value.