Accession Number:

ADA165417

Title:

Demonstration of a Statistical Method for Isolating Timesharing Components,

Descriptive Note:

Corporate Author:

NAVAL BIODYNAMICS LAB NEW ORLEANS LA

Report Date:

1986-01-01

Pagination or Media Count:

21.0

Abstract:

An objective statistical method for isolating timesharing components of performance is described and demonstrated. During the first stage of this method, partial correlation analysis is used to remove the variance attributable to the single-task measures. During the second stage, the resulting dual-task partial correlations are subjected to a form of factor analysis. Data from both Sverko 1977 and Wickens, Mountford, and Schreiner 1981 were reanalyzed and the results compared with their earlier analyses, as well as with the reanalysis of the latter study by Ackerman, Schneider and Wickens 1984. The characterization of timesharing factors and the question of a general timesharing factor are also discussed. Using the proposed method, substantial evidence for multiple timesharing components was found. Keywords Human factors engineering. Author

Subject Categories:

  • Computer Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE