Which Is the Better Prompt in Thinking-Aloud Studies, "What Are You Trying to Achieve?" or "Keep Talking"?

Morten Hertzum, Kristin Due Hansen, Hans H. K. Sønderstrup-Andersen

Publikation: Bidrag til tidsskriftKonferenceartikelForskning

Resumé

Thinking aloud is widely used for usability evaluation but generally in a relaxed way that conflicts with the prescriptions of the classic model for obtaining valid verbalizations of thought processes. We investigate whether participants that think aloud in the classic or relaxed way behave differently compared to performing in silence. Results indicate that whereas classic thinking aloud has little or no effect on behaviour apart from prolonging tasks, relaxed thinking aloud affects behaviour in multiple ways. During relaxed thinking aloud participants took longer to solve tasks, spent a larger part of tasks on general distributed visual behaviour, issued more commands to navigate both within and between the pages of the web sites used in the experiment, and experienced higher mental workload.
OriginalsprogEngelsk
BogserieAarhus Universitet. Institut for Matematiske Fag. Datalogisk Afdeling. P B
Sider (fra-til)30-33
Antal sider4
ISSN0105-8517
StatusUdgivet - 2009
BegivenhedDanish Human-Computer Interaction Research Symposium - Aarhus, Danmark
Varighed: 14 dec. 200914 dec. 2009
Konferencens nummer: 9

Konference

KonferenceDanish Human-Computer Interaction Research Symposium
Nummer9
LandDanmark
ByAarhus
Periode14/12/200914/12/2009

Emneord

    Citer dette

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    title = "Which Is the Better Prompt in Thinking-Aloud Studies, {"}What Are You Trying to Achieve?{"} or {"}Keep Talking{"}?",
    abstract = "Thinking aloud is widely used for usability evaluation but generally in a relaxed way that conflicts with the prescriptions of the classic model for obtaining valid verbalizations of thought processes. We investigate whether participants that think aloud in the classic or relaxed way behave differently compared to performing in silence. Results indicate that whereas classic thinking aloud has little or no effect on behaviour apart from prolonging tasks, relaxed thinking aloud affects behaviour in multiple ways. During relaxed thinking aloud participants took longer to solve tasks, spent a larger part of tasks on general distributed visual behaviour, issued more commands to navigate both within and between the pages of the web sites used in the experiment, and experienced higher mental workload.",
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    Which Is the Better Prompt in Thinking-Aloud Studies, "What Are You Trying to Achieve?" or "Keep Talking"? / Hertzum, Morten; Hansen, Kristin Due; Sønderstrup-Andersen, Hans H. K.

    I: Aarhus Universitet. Institut for Matematiske Fag. Datalogisk Afdeling. P B, 2009, s. 30-33.

    Publikation: Bidrag til tidsskriftKonferenceartikelForskning

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    AU - Hertzum, Morten

    AU - Hansen, Kristin Due

    AU - Sønderstrup-Andersen, Hans H. K.

    PY - 2009

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    N2 - Thinking aloud is widely used for usability evaluation but generally in a relaxed way that conflicts with the prescriptions of the classic model for obtaining valid verbalizations of thought processes. We investigate whether participants that think aloud in the classic or relaxed way behave differently compared to performing in silence. Results indicate that whereas classic thinking aloud has little or no effect on behaviour apart from prolonging tasks, relaxed thinking aloud affects behaviour in multiple ways. During relaxed thinking aloud participants took longer to solve tasks, spent a larger part of tasks on general distributed visual behaviour, issued more commands to navigate both within and between the pages of the web sites used in the experiment, and experienced higher mental workload.

    AB - Thinking aloud is widely used for usability evaluation but generally in a relaxed way that conflicts with the prescriptions of the classic model for obtaining valid verbalizations of thought processes. We investigate whether participants that think aloud in the classic or relaxed way behave differently compared to performing in silence. Results indicate that whereas classic thinking aloud has little or no effect on behaviour apart from prolonging tasks, relaxed thinking aloud affects behaviour in multiple ways. During relaxed thinking aloud participants took longer to solve tasks, spent a larger part of tasks on general distributed visual behaviour, issued more commands to navigate both within and between the pages of the web sites used in the experiment, and experienced higher mental workload.

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