Accession Number : ADA017333

Title :   Quantification and Prediction of Human Performance: Sequential Task Performance Reliability and Time.

Descriptive Note : Final rept.,


Personal Author(s) : Mills,Robert G. ; Bachert,Robert F. ; Hatfield,Shirley A.

Report Date : AUG 1975

Pagination or Media Count : 36

Abstract : A methodology has been developed and an experiment conducted to examine some of the assumptions and combinatorial rules employed in applying human performance reliability (HPR) and task time data to the quantification of human performance. Subjects performed a variety of tasks designed to provide empirical estimates of HPR and task time and to permit examination of the effects of combining tasks. Results indicated (a) the normality assumption for distribution of task time is inappropriate, (b) the rules for combining task times are satisfactory if the underlying distribution of task times is known, (c) HPR is affected severely by combining tasks, and (d) any model for estimating HPR will require parameters to account for task combining and difficulty.

Descriptors :   *Performance(Human), *Human factors engineering, Mathematical models, Performance tests, Data acquisition, Mathematical prediction, Experimental data, Computerized simulation, Man machine systems, Reliability, Time domain

Subject Categories : Psychology
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE