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Ball Course Detection Function for the Blind Bowling Support System Using a Depth Sensor Read chapter Read first chapter

2016 | OriginalPaper | Chapter

Types of Problems Elicited by Verbal Protocols for Blind and Sighted Participants

Authors : Andreas Savva, Helen Petrie, Christopher Power

Published in: Computers Helping People with Special Needs

Publisher: Springer International Publishing

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Abstract

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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Metadata
Title
Types of Problems Elicited by Verbal Protocols for Blind and Sighted Participants
Authors
Andreas Savva
Helen Petrie
Christopher Power
Copyright Year
2016
Book
Computers Helping People with Special Needs

Print ISBN: 978-3-319-41266-5

Electronic ISBN: 978-3-319-41267-2

Copyright Year: 2016

DOI
https://doi.org/10.1007/978-3-319-41267-2_79