Name of the tool | Name of the tool’s version | First author, year of publication (reference no) | Study type | Point of view | Number of dimensions and items of SDM | Response-scale | Reliability | Validity |
---|---|---|---|---|---|---|---|---|
Decisional Conflict Scale | Japanese version of DCS | Kawaguchi, 2013 [44] | Transcultural validation in Japanese language | Patient | 5 dimensions; 16 items Uncertainty (3) Informed (3) Values clarity (3) Support (3) Effective decision (4) | 5-point scale | Cronbach’s alpha = 0.84–0.96 ICC = 0.63–0.93 | Content validity: Yes Face validity: No Construct validity: Yes Convergent/discriminant validity: Yes |
OPTION scale | German version of the OPTION scale | Hirsch, 2012 [45] | Transcultural validation in German language | Observer | 1 dimension; 12 items | 5-point scale | Cronbach’s alpha = 0.90 ICC = 0.68–0.82 | Face validity: No Construct validity: Yes Convergent/discriminant validity: No Criterion validity: Yes |
PICS | I-PICS | Jonsdottir, 2013 [49] | Transcultural validation in Icelandic language | Patient | 4 dimensions; 20 items Health care professional (HCP)information (6) Patient information (5) Patient participation in decision making (4) HCP facilitation (5) | 5-point Likert scale | Cronbach’s alpha = 0.86 | Face validity: No Construct validity: Yes Convergent/discriminant validity: No Criterion validity: Yes |
SDM-Q-9 | Spanish version of SDM-Q-9 | De Las Cuevas, 2014 [50] | Transcultural validation in Spanish language | Patient | 1 dimension; 9 items | 6-point scale | Cronbach’s alpha = 0.89 ICC = 0.52–0.82 (item 1: 0.27) | Face validity: Yes Construct validity: Yes Convergent/discriminant validity: Yes |
Decisional conflict Scale | DCS-LL (low literacy version of decisional conflict scale) | Linder, 2011 [51] | Transcultural validation in low literacy version | Patient | 4 dimensions; 10 items Uncertainty (2) Informed (3) Values clarity (2) Supported (3) | 3-point scale | Cronbach’s alpha = 0.80 ICC = 0.43–0.87 | Content validity: No Face validity: No Construct validity: Yes Convergent/discriminant validity: Yes |
OPTION scale | Revised-scale of OPTION scale | Kasper, 2012 [43] | Specific psychometric properties (criterion validity) | Patient, professional | 1 dimension; 12 items | 5-point scale | Cronbach’s alpha = Yes | Criterion validity: Yes |
OPTION scale | Modified-OPTION scale | Keller, 2013 [47] | Specific psychometric properties (criterion validity, sensitivity analysis) | Observer | 1 dimension; 12 items | 5-point scale | Cronbach’s alpha = 0.90 ICC = 0.43–0.82 | Criterion validity: Yes Sensitivity analyses: Yes |
SURE | SURE | Ferron Parayre, 2014 [48] | Specific psychometric properties (criterion validity, sensitivity analysis) | Patient | 1 dimension; 4 items | 5-point scale | Cronbach’s alpha = 0.70 | Content validity: Yes Face validity: No Construct validity: No Convergent/discriminant validity: No Criterion validity: Yes Sensitivity analyses: Yes |
OPTION scale | OPTION scale | Nicolai, 2012 [46] | New psychometric properties | Observer | 1 dimension; 12 items | 5-point scale | Cronbach’s alpha = Yes | Criterion validity: Yes Convergent/discriminant validity: unknown |