Percentage of top responses by students on their knowledge and attitudes of patient safety, pre and post teaching.+,#

+ Top responses = responses of either 4 or 5 on a 5-point scale* p ** p *** p # For a few of the measures, the significance of pre-post differences in scores differed for the top responses versus original 5-point scales, which reflected the distributions of responses. In some cases, changes in perceptions appeared to be larger at the lower values of the 5-point scale (a phenomenon of bringing up the bottom scores). These differences, however, did not affect the overall evaluation results.Percentage of top responses by students on their knowledge and attitudes of patient safety, pre and post teaching.+,#