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Usability Evaluation: Tasks Susceptible to Concurrent Think-Aloud Protocol
Linköping University, Department of Computer and Information Science, MDALAB - Human Computer Interfaces.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
Abstract [en]

Think-aloud protocol is a usability testing method whereby the participant running the usability test on an interface, thinks aloud as a way of giving feedback of the task he/she is performing on the given interface. It is one of the most researched on usability testing methods. It has attracted both praises and criticisms based on the effects it has on the participants or the tests at hand. A recently done study that used simple tasks, aimed at finding out the difference between using think-aloud protocol and not using think-aloud protocol. The study concluded that no notable differences were evident on the number of fixations and the amount of screen areas viewed when using think-aloud protocol and when not using think-aloud protocol.As an extension and follow-up of the recently done study, this study focused on finding the type of tasks that the concurrent think-aloud protocol has effects on. The tasks were chosen based on the information scent concept and eye-tracking methodology was used in collecting the necessary results.The study that involved twenty participants, resulted to some effects of the concurrent think-aloud protocol being noted on the low-scent tasks but not on high-scent tasks. It therefore goes ahead to conclude the tasks onto which concurrent think-aloud protocol would be more effective and the tasks that would be executed more effectively through other usability testing methods other than concurrent think-aloud protocol.

Place, publisher, year, edition, pages
2011. , 95 p.
Keyword [en]
Usability, usability testing, think-aloud protocol, concurrent think-aloud protocol, participant, eye-tracking, information scent, calibration, low-scent, high-scent, task.
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:liu:diva-71590ISRN: LIU-IDA/LITH-EX-A--11/034--SEOAI: oai:DiVA.org:liu-71590DiVA: diva2:450865
Subject / course
Master's programme in Computer Science
Presentation
2011-09-07, Alan Turing, Linkoping University, Linkoping, 15:15 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2011-10-24 Created: 2011-10-23 Last updated: 2011-10-24Bibliographically approved

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juliana_thesis_final(5204 kB)1456 downloads
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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
  • rtf