Problem

Learning content is higher education’s primary teaching medium, yet most of it fails basic accessibility standards. The 2025 WebAIM Million analysis found that 94.8% of the top one million web pages had detectable WCAG failures [1]. Only 18% of disabled adults over 25 hold a bachelor’s degree — half the rate of non-disabled peers. The European Accessibility Act took effect in June 2025 and the US DOJ’s Title II rule requires WCAG 2.1 AA by April 2026 [2], yet most institutions still lack a structured way to address the overlapping layers of content accessibility.

In many institutions that I worked with, accessibility is treated as a single condition — content is either accessible or it is not. But that misses the reality. A lecture recording might be available on the LMS but lack captions or transcript. A handbook may include alt text but still be written in dense, impenetrable language. Even clearly written readings can be locked into fixed-layout formats that cannot resize or reflow. These are different problems, and they need different responses.

Framework and Methodology

The Hierarchy of Effective Learning Content was developed over five years of hands-on work with more than 100 higher education institutions, including accessibility audits, staff training, and content remediation projects. One pattern kept coming up: institutions were investing in higher-level interventions — readability, adaptable formats, UDL — while foundational issues around availability and basic digital accessibility remained unresolved. The framework organises these requirements into five levels arranged as a dependency chain, modelled on Maslow’s hierarchy, where each level creates the conditions for the next.

The five levels are: Availability (can learners reach the content across formats, devices?), Digital Accessibility (does it conform to WCAG [3] for assistive technology users?), Readability (is it written in plain language with clear headings?), Adaptability (can learners resize text, adjust spacing, or use text-to-speech?), and Universal Design for Learning (was it designed from the start for learner variability?). The framework draws on international standards, sector data (WebAIM, Jisc Digital Experience Insights), cognitive load research, and UDL evidence.

Implementation and Impact

Across institutions, one thing was consistently clear: staff are subject matter experts, not accessibility experts, and they should not need to be. The hierarchy gives them a starting point. It is not a checklist — it is a dependency chain. Investing in UDL when students cannot even reach the content is building on a foundation that does not exist. The framework has been developed into a whitepaper, a modular presentation system, and a five-part reflective workshop where teams audit their practices level by level.

The evidence at the top level is strong: a 2025 longitudinal study of 2,473 learners across 87 facilities found full UDL implementation produced a 37.4% increase in overall performance and 42.8% for previously disengaged learners [4]. But those gains depend on the lower levels being in place. Learner variability is the norm, not the exception. The hierarchy exists to help institutions design for that reality, from the foundation up.