Maximum Accessibility: Making Your Web Site More Usable for Everyone
Maximum Accessibility: Making Your Web Site More Usable for Everyone
Comparing accessibility evaluation tools: a method for tool effectiveness
Universal Access in the Information Society
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Remote usability evaluations With disabled people
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Web Accessibility: Web Standards and Regulatory Compliance
Web Accessibility: Web Standards and Regulatory Compliance
The relationship between accessibility and usability of websites
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Accessibility 2.0: people, policies and processes
W4A '07 Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A)
Effects of sampling methods on web accessibility evaluations
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
A comparative test of web accessibility evaluation methods
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
How much does expertise matter?: a barrier walkthrough study with experts and non-experts
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
On the testability of WCAG 2.0 for beginners
Proceedings of the 2010 International Cross Disciplinary Conference on Web Accessibility (W4A)
Accessibility challenges and tool features: an IBM Web developer perspective
Proceedings of the 2010 International Cross Disciplinary Conference on Web Accessibility (W4A)
Evaluating conformance to WCAG 2.0: open challenges
ICCHP'10 Proceedings of the 12th international conference on Computers helping people with special needs: Part I
Implementation concept for an accessible web CMS
ICCHP'10 Proceedings of the 12th international conference on Computers helping people with special needs: Part I
Automatic web accessibility metrics: Where we are and where we can go
Interacting with Computers
Development and trial of an educational tool to support the accessibility evaluation process
Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
Developing Hera-FFX for WCAG 2.0
Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
ACM SIGACCESS Accessibility and Computing
A tool to support the web accessibility evaluation process for novices
Proceedings of the 16th annual joint conference on Innovation and technology in computer science education
Evaluation of the effectiveness of a tool to support novice auditors
Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
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Although widely used,Web Content Accessibility Guidelines (WCAG) have not been studied from the viewpoint of their validity and reliability. WCAG 2.0 explicitly claim that they are based on "testable" criteria, but no scientific evidence exists that this is actually the case. Validity (how well all and only the true problems can be identified) and reliability (the extent to which different evaluations of the same page lead to same results) are key factors for quality of accessibility evaluation methods. They need to be well studied and understood for methods, and guidelines, that are expected to have a major impact. This paper presents an experiment aimed at finding out what is the validity and reliability of different checkpoints taken from WCAG 1.0 and WCAG 2.0. The experiment employed 35 young web developers with some knowledge on web accessibility. Although this is a small-scale experiment, unlikely to provide definite and general answers, results un-equivocally show that with respect to the kind of evaluators chosen in the experiment, checkpoints in general fare very low in terms of reliability, and that from this perspective WCAG 2.0 are not an improvement over WCAG 1.0.