When to ask participants to think aloud: A comparative study of concurrent and retrospective think-aloud methods

Thamer Alshammari, Obead Alhadreti, Pamela Mayhew

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Abstract

This paper presents the results of a study that compared two think-aloud usability testing methods: the concurrent think-aloud and the retrospective think-aloud methods. Data from task performance, testing experience, and usability problems were collected from 30 participants equally distributed between the two think-aloud conditions. The results suggest that while the thinking aloud method had no impact on task performance and testing experience, participants using the concurrent think-aloud method reported a larger number of problems with the test interface than participants using the retrospective think-aloud method. These findings suggest a reason for preferring the concurrent think-aloud method to the retrospective one.
Original languageEnglish
Pages (from-to)48-64
JournalInternational Journal of Human Computer Interaction
Volume6
Issue number3
Publication statusPublished - 31 Jul 2015

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