Accession Number:

AD0691806

Title:

USE OF CONTINGENT STATUS INFORMATION IN DIAGNOSTIC PERFORMANCE AND RELATED ASPECTS FOR INFORMATION DESIGN,

Descriptive Note:

Corporate Author:

AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1968-12-01

Pagination or Media Count:

28.0

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 operators decision performance would be facilitated. Author

Subject Categories:

  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE