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

    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.
    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

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