Achievement of learners receiving UDL instruction: A meta-analysis

Abstract

This meta-analysis examined learners' academic achievement in Universal Design for Learning (UDL) environments compared to business-as-usual conditions. Twenty studies, consisting of 50 individual effects, met the eligibility criteria, focusing uniquely on participants' learning and treatment/control designs. Academic achievement was analyzed for pre-kindergarten to adult participants. Results yielded a moderate positive combined effect for learners receiving UDL treatments (g = 0.43), indicating moderate efficacy of the UDL-based instruction. Five significant moderators were identified. In addition, the UDL Reporting Criteria were employed to assess whether studies included information rega..