Investigation of Workload Measuring Techniques: A Theoretical and Practical Framework,
Abstract
Workload research has lead in the past to the development of various measures, mostly concerning different aspects of task workload, in a separate and isolated way. In addition, present opinion assumes more and more that, in order to achieve a satisfactory workload evaluation, a matrix of measures is needed. This paper discusses a number of considerations involved in the setting up of an investigation dealing with the problem of being able to draw conclusions from a variety of experimental measures in a complex task situation. Several implications are pointed out, such as the problem of dealing with contradictory outcomes, the designating of artifacts, and the problem of formulating final conclusions without the (a-priori) availability of a superior method for evaluating other methods. Finally, an experimental program is outlined which is based on (normal) approach conditions for civil fixed wing aircraft. The task conditions in this experiment are selected to serve as an operationally based framework for comparing different workload evaluation methods, for evaluating the effects of specific task conditions and for investigating the strategies needed for drawing final conclusions form a variety of outcomes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1987
- Accession Number
- ADP005643
Entities
People
- Rene C. Van De Graaff
Organizations
- National Aerospace Laboratory