NDLI: Measuring and Comparing the Reliability of the Structured Walkthrough Evaluation Method with Novices and Experts

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Measuring and Comparing the Reliability of the Structured Walkthrough Evaluation Method with Novices and Experts

Content Provider	CiteSeerX
Author	Bailey, Christopher Pearson, Elaine Gkatzidou, Voula
Abstract	Effective evaluation of websites for accessibility remains problematic. Automated evaluation tools still require a significant manual element. There is also a significant expertise and evaluator effect. The Structured Walkthrough method is the translation of a manual, expert accessibility evaluation process adapted for use by novices. The method is embedded in the Accessibility Evaluation Assistant (AEA), a web accessibility knowledge management tool. Previous trials examined the pedagogical potential of the tool when incorporated into an undergraduate computing curriculum. The results of the evaluations carried out by novices yielded promising, consistent levels of validity and reliability. This paper presents the results of an empirical study that compares the reliability of accessibility evaluations produced by two groups (novices and experts). The main results of this study indicate that overall reliability of expert evaluations was 76 % compared to 65 % for evaluations produced by novices. The potential of the Structured Walkthrough method as a u seful and viable tool for expert evaluators is also examined.
File Format	PDF
Access Restriction	Open
Subject Keyword	Structured Walkthrough Evaluation Method Structured Walkthrough Method Previous Trial Effective Evaluation Viable Tool Main Result Web Accessibility Knowledge Management Tool Expert Evaluation Accessibility Evaluation Evaluation Tool Significant Expertise Consistent Level Expert Evaluator Empirical Study Pedagogical Potential Significant Manual Element Accessibility Evaluation Assistant Evaluator Effect Overall Reliability Undergraduate Computing Curriculum Expert Accessibility Evaluation Process
Content Type	Text
Resource Type	Article

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