Vaughan, Brett ORCID: 0000-0002-8623-4558 and Florentine, Prue (2013) The OSCE in a pre-registration osteopathy program: Introduction and psychometric properties. International Journal of Osteopathic Medicine, 16 (4). pp. 198-206. ISSN 1746-0689

Abstract

Objective To investigate the psychometric properties of the objective structured clinical examination (OSCE) conducted in the final year of a pre-professional osteopathy program. A variety of metrics are used to determine the reliability and validity of the examination. Methods Data from the OSCE conducted in 2011 was collated and analysed to establish the pass/fail rates, cost of the examination, internal consistency, and variance components. The examination was conducted over two days with students completing 5 stations on day 1 and 4 stations on day 2. Each station was of 15 min duration and there were 2 examiners per station. Results Forty-eight students and 31 examiners were involved in the examination. Twenty-six students failed at least one station with six students failing three or more stations. Cronbach's alpha was greater than 0.80 for all stations indicating that each is internally consistent and over 50% of the variance in the students' total score for a station was due to the students themselves. The total cost of conducting the examination was $AUD12,933.20. Conclusion The results of the study suggest that the OSCE format is an appropriate method for assessing clinical competency in osteopathic education. The OSCE should be used in conjunction with other forms of assessment to develop and overall picture of the students' clinical competency. Some modifications to the format of the assessment are required to improve the examination and these will be the subject of further studies.

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