The study references theoretical underpinnings, and the MedEdPortal states that the items were based on "field research," but the content validity of the instrument is not described in this study.
A total of 878 patients (64% response rate) completed patient survey items, and n=338 (51%) provider completed the RCS. Provider response rates varied by profession and by hospital.
Cronbach's alpha for the 7 dimensions ranged from 0.717 to 0.840 and 0.849 for the total instrument, which is adequate for formative evaluation or low-stakes assessment purposes.
Relation to Other Variables:
See below, which describes significant patient benefits of positive relational coordination.
Patient reports of care quality were significantly related to overall relational coordination (p <0.001) and for each of the 7 separate dimensions. Post-operative pain was reduced, and post-operative functioning were both significantly related to the frequency of communication (p = 0.044), the strength of communication (p = 0.035), and the degree of mutual respect among care providers (p = 0.030). Length of stay was shortened by 53.8% in teams reporting high relational coordination; LOS was also significantly related to each of the 7 dimensions.