• Oscar E C van Maarseveen, HamWietske H WWHWDepartment of Trauma Surgery, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.Institute of Nursing Studies, University of Applied Sciences Utrecht, Heidelberglaan 7, 3584 CS, Utrecht, The Netherlan, Roel L N Huijsmans, Rianne G F Dolmans, and LeenenLuke P HLPHDepartment of Trauma Surgery, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands..
• Department of Trauma Surgery, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands. o.e.c.vanmaarseveen@umcutrecht.nl.
• Eur J Trauma Emerg Surg. 2022 Feb 1; 48 (1): 441-447.

PurposeNon-technical skills have gained attention, since enhancement of these skills is presumed to improve the process of trauma resuscitation. However, the reliability of assessing non-technical skills is underexposed, especially when using video analysis. Therefore, our primary aim was to assess the reliability of the Trauma Non-Technical Skills (T-NOTECHS) tool by video analysis. Secondarily, we investigated to what extent reliability increased when the T-NOTECHS was assessed by three assessors [average intra-class correlation (ICC)] instead of one (individual ICC).MethodsAs calculated by a pre-study power analysis, 18 videos were reviewed by three research assistants using the T-NOTECHS tool. Average and individual degree of agreement of the assessors was calculated using a two-way mixed model ICC.ResultsAverage ICC was 'excellent' for the overall score and all five domains. Individual ICC was classified as 'excellent' for the overall score. Of the five domains, only one was classified as 'excellent', two as 'good' and two were even only 'fair'.ConclusionsAssessment of non-technical skills using the T-NOTECHS is reliable using video analysis and has an excellent reliability for the overall T-NOTECHS score. Assessment by three raters further improve the reliability, resulting in an excellent reliability for all individual domains.© 2020. The Author(s).

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