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J Adv Nurs. 2010 Dec;66(12):2807-18. doi: 10.1111/j.1365-2648.2010.05421.x. Epub 2010 Aug 16.

The novice objective structured clinical evaluation tool: psychometric testing.

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1
School of Nursing, Northern College of Applied Arts and Technology, Timmins, Ontario, Canada. walshm@northern.on.ca

Abstract

AIM:

This paper is a report of a study of the psychometric properties of the Novice Objective Structured Clinical Evaluation Tool.

BACKGROUND:

A collaborative undergraduate nursing programme is currently using an objective structured clinical evaluation at the conclusion of the first nursing clinical course to determine student competence as a component of quality and safety education. However, the reliability and validity of the assessment tool has not been established.

METHODS:

Psychometric testing was conducted with a convenience sample of 565 nursing students. Data were collected during three consecutive years from 2002 to 2004. Exploratory factor analysis and reliability testing were conducted on this 25-item tool.

RESULTS:

Principal axis factoring method identified two factors through the orthogonal, oblimin and promax rotations: Factor 1 Safety and Factor 2, Anticipation. Spearman-Brown's result for Factor 1 was 0·93 and for Factor 2 was 0·77. Cronbach's alpha was.94 for Factor 1 and 0·71 for Factor 2.

CONCLUSION:

The tool was found to have adequate construct validity and reliability. Its stability should be tested by conducting test-retest analysis. Equivalency dimensions of reliability should be evaluated by looking at interrater reliability. This tool shows merit for assessing elements of quality and safety education.

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