Developing a model of competence in the operating theatre: Psychometric validation of the Perceived Perioperative Competence Scale-Revised

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Journal Article
International Journal of Nursing Studies, 2012, 49 (1), pp. 90 - 101
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Aim This paper describes the development and validation of the Revised Perioperative Competence Scale (PPCS-R). Background There is a lack of a psychometrically tested sound self-assessment tools to measure nurses perceived competence in the operating room. Methods Content validity was established by a panel of international experts and the original 98-item scale was pilot tested with 345 nurses in Queensland, Australia. Following the removal of several items, a national sample that included all 3209 nurses who were members of the Australian College of Operating Room Nurses was surveyed using the 94-item version. Psychometric testing assessed content validity using exploratory factor analysis, internal consistency using Cronbach's alpha, and construct validity using the known groups technique. During item reduction, several preliminary factor analyses were performed on two random halves of the sample (n = 550).
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