as described elsewhere.21 Twenty-four participants failed to complete the demographics section. This left 287 participants (37.0% of 776) who completed all aspects of the study. On a posttest question, 67 of these 287 participants reported some awareness of what the study was about through discussions with colleagues who had completed it. Because this awareness may have biased their responses to the case vignette, we omitted these participants from the analyses. All results (unless otherwise specified) are based on the 220 participants (28.4%) who completed the study and were unaware of the nature of the study.
