USE OF CONTINGENT STATUS INFORMATION IN DIAGNOSTIC PERFORMANCE AND RELATED ASPECTS FOR INFORMATION DESIGN,
Abstract
The ability of observers to use stimulus relationships in making predictive or diagnostic decisions is investigated and implications of this area of research for application to man-machine systems are considered. Observers were required to make predictive estimates of the state of a system based on observations of sequentially presented qualitative subsystem status information. The status information was derived from four-cell contingency tables containing event frequencies and quantified by a correlation coefficient which varied from approximately 1.0 to -1.0. Results indicate: (a) that observers' estimates appear to be based on the relative frequency of cell events as opposed to a correlation solution; (b) there is greater accuracy when estimates are based on positive relationships; and (c) observers are capable of only very gross discrimination between various levels of relationship. Conclusions generally considered how these results might be used in 'designing' the information structure of man-machine systems such that an operator's decision performance would be facilitated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1968
- Accession Number
- AD0691806
Entities
People
- Robert G. Mills
Organizations
- Air Force Research Laboratory