Fig. 1

Point and cluster map of criteria demonstrating spatial relationships (n = 23). This point and cluster map reflects the product of our stakeholders’ (valid response n = 23) sorting the 47 criteria into groups that they deemed conceptually similar. Each strategy is depicted as a dot with a number that corresponds to Table 1. The distances between criteria reflect the frequency at which they were sorted together; thus, strategies that were sorted together frequently are closer together on the map. These spatial relationships are relative to the data in this study and do not reflect an absolute relationship (i.e., a 5-mm distance on this map does not reflect the same relationship as a 5-mm distance on a map from a different dataset) [15]. Items 19 (“sensitive to change”) and 7 (“important to clinical care”) were originally assigned to the “compatible” cluster, but were moved to the “useful” cluster because the investigative team believed that it represented a better conceptual fit. The gray dotted lines within the “useful” cluster and between the “useful” and “compatible” clusters represent how the clusters would have been represented if we had not made this change