Translation, transcultural adaptation, and validation of two questionnaires on shared decision making

To translate, transcultural adapt, and validate the "CollaboRATE" measure and the "Ask 3 Questions" intervention in Argentina, allowing us to quantify the degree of use and implementation of shared decision making (SDM).

Cross-sectional study.

Data were collected in an academic hospital in Buenos Aires. Physician-patient pairs were invited to participate following their scheduled outpatient visits.

Two processes were carried out as follows: (a) The translation and transcultural adaptation process, in which translations were produced and then adapted to Spanish. (b) The validation process, in which questionnaires were completed by patient-physician pairs, the results of which were subsequently analysed. Reliability (Cronbach's alpha) and construct validity (principal component analysis) were assessed.

The final Spanish versions of "CollaboRATE" and "Ask 3 Questions" were tested in a primary care sample of 56 participants. Both instruments presented adequate reliability and validity. Internal consistency yielded a Cronbach's alpha of 98.3 for the "CollaboRATE" measure and 0.77 and 0.69 for the patients and physicians versions of the "Ask 3 Questions" intervention. Principal components analysis showed eigenvalues of first component >1.

We obtained valid and reliable Spanish versions of the "CollaboRATE" measure and the "Ask 3 Questions" intervention. These versions can be used for the assessment of SDM in clinical visits, and to obtain new information which could help the monitoring of its implementation.