Variation in the length of time productions and verbal estimates of duration was investigated to determine the influence of concurrent activity on operator time perception. The length of 10-, 20-, and 30-sec intervals produced while performing six different compensatory tracking tasks was significantly longer, 23% on the average, than those produced while performing no other task. Verbal estimates of session duration, taken at the end of each of 27 experimental sessions, reflected a parallel increase in subjective underestimation of the passage of time as the difficulty of the task performed increased. These data suggest that estimates of duration made while performing a manual control task provide stable and sensitive measures of the workload imposed by the primary task, with minimal interference.


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    Titel :

    Time Estimation as A Secondary Task to Measure Workload


    Beteiligte:
    Sandra G. Hart (Autor:in)

    Kongress:

    Eleventh Annual Conference on Manual Control ; 1975 ; Moffett Field, CA, US



    Erscheinungsdatum :

    01.05.1975


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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