Figure 4.
Results from instruments measuring total perceived usability of the electronic health record system (System Usability Scale [SUS] survey). White circles represent outliers. Light gray territory highlights scores above the median while dark gray shows scores below the median. The median is indicated in red. Differences that are significant at the .05 level (2-tailed) are denoted by 1 asterisk, while differences that are significant at the .01 level (2-tailed) are denoted by 2 asterisks.