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Patient Educ Couns. 2011 Apr;83(1):55-7. doi: 10.1016/j.pec.2010.04.019. Epub 2010 May 26.

Dyadic OPTION: Measuring perceptions of shared decision-making in practice.

Author information

  • 1Department of Primary Care and Public Health, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4YS.



Current models of the medical consultation emphasize shared decision-making (SDM), whereby the expertise of both the doctor and the patient are recognised and seen to equally contribute to the consultation. The evidence regarding the desirability and effectiveness of the SDM approach is often conflicting. It is proposed that the conflicts are due to the nature of assessment, with current assessments from the perspective of an outside observer.


To empirically assess perceived involvement in the medical consultation using the dyadic OPTION instrument.


36 simulated medical consultations were organised between general practitioners and standardized- patients, using the observer OPTION and the newly developed dyadic OPTION instruments.


SDM behaviours observed in the consultations were seen to depend on both members of the doctor and patient dyad, rather than each in isolation. Thus a dyadic approach to measurement is supported.


This current study highlights the necessity for a dyadic approach to assessment and introduces a novel research instrument: the dyadic OPTION instrument.

Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

[PubMed - indexed for MEDLINE]
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