Document Detail

Evaluation of the HFACS-ADF safety classification system: inter-coder consensus and intra-coder consistency.
MedLine Citation:
PMID:  20159064     Owner:  NLM     Status:  MEDLINE    
This article evaluates an adaptation of the human factors analysis and classification system (HFACS) adopted by the Australian Defence Force (ADF) to classify factors that contribute to incidents. Three field studies were undertaken to assess the reliability of HFACS-ADF in the context of a particular ADF air traffic control (ATC) unit. Study one was designed to assess inter-coder consensus between many coders for two incident reports. Study two was designed to assess inter-coder consensus between one participant and the previous original analysts for a large set of incident reports. Study three was designed to test intra-coder consistency for four participants over many months. For all studies, agreement was low at the level of both fine-level HFACS-ADF descriptors and high-level HFACS-type categories. A survey of participants suggested that they were not confident that HFACS-ADF could be used consistently. The three field studies reported suggest that the ADF adaptation of HFACS is unreliable for incident analysis at the ATC unit level, and may therefore be invalid in this context. Several reasons for the results are proposed, associated with the underlying HFACS model and categories, the HFACS-ADF adaptations, the context of use, and the conduct of the studies.
Nikki S Olsen; Steven T Shorrock
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Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2009-10-06
Journal Detail:
Title:  Accident; analysis and prevention     Volume:  42     ISSN:  1879-2057     ISO Abbreviation:  Accid Anal Prev     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-17     Completed Date:  2010-06-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1254476     Medline TA:  Accid Anal Prev     Country:  England    
Other Details:
Languages:  eng     Pagination:  437-44     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier Ltd. All rights reserved.
Department of Aviation, The University of New South Wales, Kensington, Sydney, NSW 2052, Australia.
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MeSH Terms
Accidents, Aviation / classification*
Military Personnel
Observer Variation
Safety Management*

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