Document Detail


Analysis of an observational rating scale for repetition, posture, and force in selected manufacturing settings.
MedLine Citation:
PMID:  17063964     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The aim of this work was to quantify the interrater reliability of a set of scales that assess repetition, posture, and force as used on site when examining industrial work. BACKGROUND: Interrater reliability of observational assessment methods can vary depending on the definition of the methods and situations in which they are used. METHOD: In several industries, 846 jobs were assessed using pairs of analysts to rate the repetition, force, and posture of the upper limbs. Twelve analysts with varying experience levels participated. RESULTS: Using an interclass correlation coefficient (ICC), force and repetition had reliability values of .60 and .71 before and .82 and .87 after discussion, respectively. After discussion, peak posture ratings had ICCs of .60 to .83. ICCs for average posture ratings ranged from .31 to .51 initially to .55 to .67 in final ratings. Less experienced analysts changed their initial ratings more than did the senior investigators. CONCLUSION: The high interrater reliability of the repetition and force metrics indicates that a single analyst is appropriate for basic job assessment. Posture ratings benefit greatly from a two-analyst system. Average postures should be assessed across a full range of the scale for interrater reliability assessment. Analyst pairs should be rotated to avoid forming biases. APPLICATION: For basic assessments of forceful exertions and repetitive motions, a single analyst can be used, reducing the resource requirements for both industry and large epidemiological studies.
Authors:
Marissa L Ebersole; Thomas J Armstrong
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Human factors     Volume:  48     ISSN:  0018-7208     ISO Abbreviation:  Hum Factors     Publication Date:  2006  
Date Detail:
Created Date:  2006-10-26     Completed Date:  2006-12-14     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0374660     Medline TA:  Hum Factors     Country:  United States    
Other Details:
Languages:  eng     Pagination:  487-98     Citation Subset:  IM; S    
Affiliation:
University of Michigan, Ann Arbor, Michigan, USA. marissal@umich.edu
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MeSH Terms
Descriptor/Qualifier:
Humans
Michigan
Observer Variation*
Occupational Exposure / analysis
Physical Exertion*
Posture*
Task Performance and Analysis*
Upper Extremity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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