Is Accessibility Conformance an Elusive Property? A Study of Validity and Reliability of WCAG 2.0
Giorgio Brajnik, Yeliz Yesilada, Simon Harper · 2012 · ACM Transactions on Accessible Computing
This landmark study investigates whether WCAG 2.0's definition of "Reliably Human Testable"—that at least 80% of knowledgeable evaluators would agree on an audit conclusion—is actually achievable in practice. The researchers recruited 25 experienced accessibility evaluators…
WCAG · conformance testing · accessibility evaluation · evaluator effect · reliability