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Accessibility of Internet websites through time

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Abstract

Using Internet Archive's Wayback Machine, a random sample of websites from 1997-2002 were retrospectively analyzed for effects that technology has on accessibility for persons with disabilities and compared to government websites. Analysis of Variance (ANOVA) and Tukey's HSD were used to determine differences among years. Random websites become progressively inaccessible through the years (p<0.0001) [as shown by increasing Web Accessibility Barrier (WAB) scores], while complexity of the websites increased through the years (p<0.0001). Pearson's correlation (r) was performed to correlate accessibility and complexity: r=0.463 (p<0.01). Government websites remain accessible while increasing in complexity: r=0.14 (p<0.041). It is concluded that increasing complexity, oftentimes caused by adding new technology to a Web page, inadvertently contributes to increasing barriers to accessibility for persons with disabilities.

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          cover image ACM SIGACCESS Accessibility and Computing
          ACM SIGACCESS Accessibility and Computing Just Accepted
          Sept. 2003 - Jan. 2004
          192 pages
          ISSN:1558-2337
          EISSN:1558-1187
          DOI:10.1145/1029014
          Issue’s Table of Contents
          • cover image ACM Conferences
            Assets '04: Proceedings of the 6th international ACM SIGACCESS conference on Computers and accessibility
            October 2004
            202 pages
            ISBN:158113911X
            DOI:10.1145/1028630

          Copyright © 2003 ACM

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          • Published: 1 September 2003

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