Subjective workload assessment technique

The team workload awareness questionnaire is a subjective workload assessment technique based on an established workload questionnaire (the NASA TLX see Hart and Staveland, 1988). It is used to elicit subjective ratings... 

Reid, G.B. and Nygren, T.E., 1988. The subjective workload assessment technique A scaling procedure for measuring mental workload. Human Mental Workload PA.M. Hancock, N. Amsterdam, Elsevier Science Pubhshers B.V. (North-Holland), pp. 185 18. 

T. E. Nygren, "Psychometric properties of subjective workload measurement techniques Implications for their use in the assessment of perceived mental workload," Human Factors J. Human Factors Ergonomics Soc., 33(1) 17-33,1991. 

Various mental workload assessment approaches are available, including primary and secondary task performance measures, physiological measures, and subjective-rating techniques. Typically, a combination of all four is used during mental workload assessment efforts (Young and Stanton, 2001). A brief summary of each method type is presented below. 

Vidulich, M.A., Ward, G.F., and Schueren, J. (1991). Using the subjective workload dominance (SWORD) technique for projective workload assessment Human Factors, 33(6), 677-692. 

In many studies, task demands are only assessed with subjective techniques. This approach is not adequate because there may often be, for various reasons, a considerable difference between the objective workload and the subjective evaluation by the employees. Hence, it is in most cases desirable to obtain objective data on task demands. The operationalization of demand as well as perfonnance measures deserves very careful consideration. It is often necessary to consult experts and to carry out an operational task analysis in order to obtain sufficient insight into the relevant specifications. 

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