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

Andreas Savva; Helen Petrie; Christopher Douglas Power

doi:10.1007/978-3-319-41264-1

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

Andreas Savva, Helen Petrie, Christopher Douglas Power

Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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.

Original language	English
Title of host publication	Proceedings of the 15th International Conference on Computers Helping People with Special Needs
Publisher	Springer
DOIs	https://doi.org/10.1007/978-3-319-41264-1
Publication status	Published - 13 Jul 2016

Publication series

Name	Lecture Notes in Computer Science
Volume	9758

Bibliographical note

© 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.

Keywords

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

Access to Document

10.1007/978-3-319-41264-1

ICCHP 2016 paper (Pre-Pub)
© 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.
Accepted author manuscript, 254 KB

Cite this

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title = "Types of problems elicited by verbal protocols for blind and sighted participants",

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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Types of problems elicited by verbal protocols for blind and sighted participants. / Savva, Andreas; Petrie, Helen ; Power, Christopher Douglas.
Proceedings of the 15th International Conference on Computers Helping People with Special Needs. Springer, 2016. (Lecture Notes in Computer Science; Vol. 9758).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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