By the same authors

Types of problems elicited by verbal protocols for blind and sighted participants

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Publication details

Title of host publicationProceedings of the 15th International Conference on Computers Helping People with Special Needs
DateAccepted/In press - 15 Apr 2016
DatePublished (current) - 13 Jul 2016
Original languageEnglish

Publication series

NameLecture Notes in Computer Science


Verbal protocols are often used in user-based studies of interactive technologies. This study investigated whether different types of problems are revealed by concurrent and retrospective verbal protocols (CVP and RVP) for blind and sighted participants. Eight blind and eight sighted participants undertook both CVP and RVP on four websites. Overall, interactivity problems were significantly more frequent in comparison to content or information architecture problems. In addition, RVP revealed significantly more interactivity problems than CVP for both user groups. Finally, blind participants encountered significantly more interactivity problems than sighted participants. The findings have implications for which protocol is appropriate, depending on the purpose of a particular study and the user groups involved.

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© 2017 Springer International Publishing AG. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

    Research areas

  • User-based studies concurrent verbal protocol retrospective verbal protocol usability accessibility blind users

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