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Visible Learning™
Visible Learning MetaX
Version 1.4 – Updated February 2026

Universal design

Overview

  • Influence: Universal design
  • Domain: Teaching Strategies
  • Sub-Domain: Instructional strategies
  • Potential to Accelerate Student Achievement: Potential to accelerate
  • Influence Definition: Universal design aims to create learning environments, resources, and instruction that are accessible and effective for all students, regardless of their abilities, disabilities, or learning styles, by proactively addressing diverse needs

Evidence

  • Number of meta-analyses: 1
  • Number of studies: 22
  • Number of students: 33,525
  • Number of effects: 50
  • Weighted mean effect size: 0.43
  • Robustness index: 2

Meta-Analyses

Meta-Analyses
Journal Title Author Article Name Year Published Variable Number of Studies Number of Students Number of Effects Effect Size
Teaching and Teacher Education King-Sears, Stefanidis, Evmenova, Rao, Mergen, Owen, & Strimel Achievement of Learners Receiving UDL Instruction: A Meta-Analysis. 2023 Universal Design 22 33,525 50 0.43
TOTAL/AVERAGE 22 33,525 50 0.43
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