A validity study of the national UK colposcopy objective structured clinical examination: is it a test fit for purpose?

M Shehmar (Corresponding Author), M Cruickshank, C Finn, C Redman, I Fraser, E Peile

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Abstract

This study examines the validity and reliability of the British Society for Colposcopy and Cytopathology (BSCCP) objective structured clinical examination (OSCE). The BSCCP OSCE results obtained over eight OSCE circuits were analysed using SPSS 15. Face validity and content validity were established from expert opinion and blueprinting. Statistically significant difference was not shown in construct validity through level of experience (P=0.867, P=0.822, P=0.59, P=0.74, P=0.12, P=0.01; these are the P values for each of the patient interaction stations) however, concurrent validity was established against the gynaecology mini-CEX (sensitivity=1, specificity=0.8, positive predictive value=0.947, negative predictive value=1). The reliability of the OSCE's range from Cronbach's alpha of 0.617 to 0.775. The OSCE has face, content and concurrent validity.

Original languageEnglish
Pages (from-to)1796-1800
Number of pages5
JournalBritish Journal of Obstetrics and Gynaecology
Volume116
Issue number13
Early online date11 Nov 2009
DOIs
Publication statusPublished - Dec 2009

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Keywords

  • BSCCP
  • OSCE
  • reliability
  • validity

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