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

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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 ... continued below

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Boring, Ronald L.; Griffith, Candice D. & Joe, Jeffrey C. August 1, 2007.

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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.

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  • 8th IEEE Conference on Human Factors and Power Plants and 13th Conference on Human Performance, Root,Monterey, California,08/26/2007,08/31/2007

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  • Report No.: INL/CON-07-12780
  • Grant Number: DE-AC07-99ID-13727
  • Office of Scientific & Technical Information Report Number: 915533
  • Archival Resource Key: ark:/67531/metadc881021

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Office of Scientific & Technical Information Technical Reports

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  • August 1, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 7, 2016, 4:24 p.m.

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Boring, Ronald L.; Griffith, Candice D. & Joe, Jeffrey C. The Measure of Human Error: Direct and Indirect Performance Shaping Factors, article, August 1, 2007; [Idaho Falls, Idaho]. (digital.library.unt.edu/ark:/67531/metadc881021/: accessed December 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.