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Examiners’ decision-making processes in observation-based clinical examinations

Malau-Aduli, B, Hays, RB, D'Souza, K, Smith, AM, Jones, K, Turner, RC ORCID: 0000-0002-2276-8999, Shires, L ORCID: 0000-0003-3396-7894, Smith, J, Saad, S, Richmond, C, Celenza, A and Sen Gupta, T 2021 , 'Examiners’ decision-making processes in observation-based clinical examinations' , Medical Education, vol. 55 , 344–353 , doi: 10.1111/medu.14357.

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Abstract

Background:Objective structured clinical examinations (OSCEs) are commonly used to assess the clinical skills of health professional students. Examiner judgement is one acknowledged source of variation in candidate marks. This paper reports an exploration of examiner decision making to better characterise the cognitive processes and workload associated with making judgements of clinical performance in exit-level OSCEs.Methods:Fifty-five examiners for exit-level OSCEs at five Australian medical schools completed a NASA Task Load Index (TLX) measure of cognitive load and participated in focus group interviews immediately after the OSCE session. Discussions focused on how decisions were made for borderline and clear pass candidates. Interviews were transcribed, coded and thematically analysed. NASA TLX results were quantitatively analysed.Results:Examiners self-reported higher cognitive workload levels when assessing a borderline candidate in comparison with a clear pass candidate. Further analysis revealed five major themes considered by examiners when marking candidate performance in an OSCE: (a) use of marking criteria as a source of reassurance; (b) difficulty adhering to the marking sheet under certain conditions; (c) demeanour of candidates; (d) patient safety, and (e) calibration using a mental construct of the 'mythical [prototypical] intern'. Examiners demonstrated particularly higher mental demand when assessing borderline compared to clear pass candidates.Conclusions:Examiners demonstrate that judging candidate performance is a complex, cognitively difficult task, particularly when performance is of borderline or lower standard. At programme exit level, examiners intuitively want to rate candidates against a construct of a prototypical graduate when marking criteria appear not to describe both what and how a passing candidate should demonstrate when completing clinical tasks. This construct should be shared, agreed upon and aligned with marking criteria to best guide examiner training and calibration. Achieving this integration may improve the accuracy and consistency of examiner judgements and reduce cognitive workload.

Item Type: Article
Authors/Creators:Malau-Aduli, B and Hays, RB and D'Souza, K and Smith, AM and Jones, K and Turner, RC and Shires, L and Smith, J and Saad, S and Richmond, C and Celenza, A and Sen Gupta, T
Journal or Publication Title: Medical Education
Publisher: Blackwell Publishing Ltd
ISSN: 0308-0110
DOI / ID Number: 10.1111/medu.14357
Copyright Information:

© 2020 John Wiley & Sons Ltd and The Association for the Study of Medical Education

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