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Title: The Measure of Human Error: Direct and Indirect Performance Shaping Factors

Conference ·
OSTI ID:915533

The goal of performance shaping factors (PSFs) is to provide measures to account for human performance. PSFs fall into two categories—direct and indirect measures of human performance. While some PSFs such as “time to complete a task” are directly measurable, other PSFs, such as “fitness for duty,” can only be measured indirectly through other measures and PSFs, such as through fatigue measures. This paper explores the role of direct and indirect measures in human reliability analysis (HRA) and the implications that measurement theory has on analyses and applications using PSFs. The paper concludes with suggestions for maximizing the reliability and validity of PSFs.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
DOE - NE
DOE Contract Number:
DE-AC07-99ID-13727
OSTI ID:
915533
Report Number(s):
INL/CON-07-12780; TRN: US200817%%572
Resource Relation:
Conference: 8th IEEE Conference on Human Factors and Power Plants and 13th Conference on Human Performance, Root,Monterey, California,08/26/2007,08/31/2007
Country of Publication:
United States
Language:
English