Rater Reliability and Concurrent Validity of the Keyboard Personal Computer Style Instrument (K-PeCS)

Details

• Personal Author:
  Baker NA ; Cook JR ; Redfern MS
• Description:
  This paper describes the inter-rater and intra-rater reliability, and the concurrent validity of an observational instrument, the Keyboard Personal Computer Style instrument (K-PeCS), which assesses stereotypical postures and movements associated with computer keyboard use. Three trained raters independently rated the video clips of 45 computer keyboard users to ascertain inter-rater reliability, and then re-rated a sub-sample of 15 video clips to ascertain intra-rater reliability. Concurrent validity was assessed by comparing the ratings obtained using the K-PeCS to scores developed from a 3D motion analysis system. The overall K-PeCS had excellent reliability [inter-rater: intra-class correlation coefficients (ICC)=.90; intra-rater: ICC=.92]. Most individual items on the K-PeCS had from good to excellent reliability, although six items fell below ICC=.75. Those K-PeCS items that were assessed for concurrent validity compared favorably to the motion analysis data for all but two items. These results suggest that most items on the K-PeCS can be used to reliably document computer keyboarding style. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Computers Ergonomics Musculoskeletal System Occupational Health Safety
• Keywords:
  Author Keywords: VDT Evaluation Biomechanical-modeling Biomechanics Computer-equipment Equipment-design Equipment-operators Instrument Development Mathematical-models Models MSD-UE Posture Skeletal-movement Statistical-analysis

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• ISSN:
  0003-6870
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  136-144
• Volume:
  40
• Issue:
  1
• NIOSHTIC Number:
  nn:20034915
• Citation:
  Appl Ergon 2009 Jan; 40(1):136-144
• Contact Point Address:
  Nancy A. Baker, Department of Occupational Therapy, University of Pittsburgh, 5012 Forbes Tower, Pittsburgh, PA 15260
• Email:
  nab36@pitt.edu
• Federal Fiscal Year:
  2009
• Performing Organization:
  University of Pittsburgh
• Peer Reviewed:
  True
• Start Date:
  20040501
• Source Full Name:
  Applied Ergonomics
• End Date:
  20070430
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:262eadaa5eb674749dcfba057bb5341e77344da80a0ff80970db48bbb6add02bf5ce87c16305fa76bd8b316ac781d853db501c4ddf1b4217bd04cebe21211cf4
• Download URL:
  https://stacks.cdc.gov/view/cdc/186942/cdc_186942_DS1.pdf
• File Type:
  [PDF - 190.04 KB ]