CHI '02 Extended Abstracts on Human Factors in Computing Systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Damaged merchandise? a review of experiments that compare usability evaluation methods
Human-Computer Interaction
Web accessibility testing: when the method is the culprit
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Proceedings of the 2009 International Cross-Disciplinary Conference on Web Accessibililty (W4A)
Validity and reliability of web accessibility guidelines
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
Accessible videodescription On-Demand
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
An educational tool to support the accessibility evaluation process
Proceedings of the 2010 International Cross Disciplinary Conference on Web Accessibility (W4A)
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Proceedings of the International Conference on Advanced Visual Interfaces
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Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
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Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
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
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The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
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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Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
Implementing web accessibility: the MIPAW approach
ICCHP'12 Proceedings of the 13th international conference on Computers Helping People with Special Needs - Volume Part I
Proceedings of the 11th Brazilian Symposium on Human Factors in Computing Systems
Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility
Evaluating accessibility-in-use
Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility
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Accessibility auditors have to choose a method when evaluating accessibility: expert review (a.k.a. conformance testing), user testing, subjective evaluations, barrier walkthrough are some possibilities. However, little is known to date about their relative strengths and weaknesses. Furthermore, what happened for usability evaluation methods is likely to repeat for accessibility: that there is uncertainty about not only pros and cons of methods, but also about criteria to be used to compare them and metrics to measure these criteria. After a quick review and description of methods, the paper illustrates a comparative test of two web accessibility evaluation methods: conformance testing and barrier walkthrough. The comparison aims at determining merits of barrier walkthrough, using conformance testing as a control condition. A comparison framework is outlined, followed by the description of a laboratory experiment with 12 subjects (novice accessibility evaluators), and its results. Significant differences were found in terms of correctness, one of the several metrics used to compare the methods. Reliability also appears to be different.