Measuring nursing competencies in the operating theatre: instrument development and psychometric analysis using Item Response Theory

Nicholson, Patricia, Griffin, Patrick, Gillis, Shelley, Wu, Margaret and Dunning, Trisha 2013, Measuring nursing competencies in the operating theatre: instrument development and psychometric analysis using Item Response Theory, Nurse education today, vol. 33, no. 9, pp. 1088-1093, doi: 10.1016/j.nedt.2012.04.008.

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Title Measuring nursing competencies in the operating theatre: instrument development and psychometric analysis using Item Response Theory
Author(s) Nicholson, PatriciaORCID iD for Nicholson, Patricia
Griffin, Patrick
Gillis, Shelley
Wu, Margaret
Dunning, TrishaORCID iD for Dunning, Trisha
Journal name Nurse education today
Volume number 33
Issue number 9
Start page 1088
End page 1093
Total pages 6
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2013-09
ISSN 1532-2793
Keyword(s) Clinical assessment
Competency-based assessment
Item Response Theory
Rasch model
Social Sciences
Science & Technology
Life Sciences & Biomedicine
Education, Scientific Disciplines
Education & Educational Research
Summary BACKGROUND: Concern about the process of identifying underlying competencies that contribute to effective nursing performance has been debated with a lack of consensus surrounding an approved measurement instrument for assessing clinical performance. Although a number of methodologies are noted in the development of competency-based assessment measures, these studies are not without criticism. RESEARCH AIM: The primary aim of the study was to develop and validate a Performance Based Scoring Rubric, which included both analytical and holistic scales. The aim included examining the validity and reliability of the rubric, which was designed to measure clinical competencies in the operating theatre. RESEARCH METHOD: The fieldwork observations of 32 nurse educators and preceptors assessing the performance of 95 instrument nurses in the operating theatre were used in the calibration of the rubric. The Rasch model, a particular model among Item Response Models, was used in the calibration of each item in the rubric in an attempt at improving the measurement properties of the scale. This is done by establishing the 'fit' of the data to the conditions demanded by the Rasch model. RESULTS: Acceptable reliability estimates, specifically a high Cronbach's alpha reliability coefficient (0.940), as well as empirical support for construct and criterion validity for the rubric were achieved. Calibration of the Performance Based Scoring Rubric using Rasch model revealed that the fit statistics for most items were acceptable. CONCLUSION: The use of the Rasch model offers a number of features in developing and refining healthcare competency-based assessments, improving confidence in measuring clinical performance. The Rasch model was shown to be useful in developing and validating a competency-based assessment for measuring the competence of the instrument nurse in the operating theatre with implications for use in other areas of nursing practice.
Language eng
DOI 10.1016/j.nedt.2012.04.008
Field of Research 111099 Nursing not elsewhere classified
1110 Nursing
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2013, Elsevier
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