title: Using a 'talk' model of shared decision making to propose an observation-based measure: Observer OPTION 5 Item.
abstract: OBJECTIVE
  To propose a revised Observer OPTION measure of shared decision making.
  
  
  METHODS
  We analyzed published models to identify the core components of a parsimonious conceptual framework of shared decision making. By using this framework, we developed a revised measure combining data from an observational study of clinical practice in Canada with our experience of using Observer OPTION(12 Item).
  
  
  RESULTS
  Our conceptual framework for shared decision making composed of justifying deliberative work, followed by the steps of describing options, information exchange, preference elicitation, and preference integration. By excluding items in Observer OPTION(12 Item) that were seldom observed or not aligned to a robust construct, we propose Observer OPTION(5 Item).
  
  
  CONCLUSIONS
  Although widely used, Observer OPTION(12 Item) did not give sufficient attention to preference elicitation and integration, and included items that were not specific to a core construct of shared decision making. We attempted to remedy these shortcomings by proposing a shorter, more focused measure.
  
  
  CONCLUSIONS
  Observer OPTION(5 Item) requires evaluation; we hope that it will be useful as both a research tool and as a formative measure of clinical practice.
authors.affiliation: The Dartmouth Center for Health Care Delivery Science, Dartmouth College, USA; Cochrane Institute for Primary Care and Public Health, Cardiff University, UK. Electronic address: glynelwyn@gmail.com.
authors.forename: Glyn
authors.initials: G
authors.lastname: Elwyn
authors.forename: Maka
authors.initials: M
authors.lastname: Tsulukidze
authors.forename: Adrian
authors.initials: A
authors.lastname: Edwards
authors.forename: France
authors.initials: F
authors.lastname: Légaré
authors.forename: Robert
authors.initials: R
authors.lastname: Newcombe
mesh_terms: D002170:Canada; D003657:Decision Making; D006801:Humans; D008962:Models, Theoretical; D019370:Observation; D017064:Process Assessment, Health Care / Q000379:methods*; D011594:Psychometrics
keywords: Measurement; Patient involvement; Process measure; Shared decision making