University of Twente Student Theses


Mental workload measurement : a maritime simulation study

Vreede, R.R.J.F. (2018) Mental workload measurement : a maritime simulation study.

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Abstract:A study of varying conditions of taskload to test various workload measures was conducted. The measures were tested for internal consistency, sensitivity, and correlations. The measures, selected on the basis of previous literature, include measures of primary and secondary performance, subjective measures, and physiological measures. Twenty tugboat captains performed two scenarios of varying workload in a simulated environment. Results showed that only a few of the investigated measures were sensitive to the task demands, and the correlations of the measures did not indicate a unitary mental workload concept. To further investigate whether the results were found because of too subtle task manipulations or measures that were not sensitive enough to measure the task manipulations, an individual differences analysis was performed on the captains that scored the highest on the mental workload measures. High values on primary performance criteria, which meant difficulty with performing the task correctly, did not correlate with the other measurement values that should indicate the difficulty with performing the tasks. It is concluded that it is difficult to attribute the lack of sensitivity to experimental design or construct validity.
Item Type:Essay (Master)
MARIN, Wageningen, Nederland
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology MSc (66604)
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