“…In addition, half of the largest U.S. EHR vendors are not meeting standards for usability testing, with two thirds conducting tests with fewer than the minimum 15 participants, as suggested by the National Institute of Standards and Technology, and one fifth conducting at least half of their tests using subjects with no clinical background (Ratwani et al, 2015). Substandard usability testing may contribute to serious, unintended consequences in the implementation of health information technologies (Graber, Siegal, Riah, Johnston, & Kenyon, 2015; Han et al, 2005; Nebeker, Hoffman, Weir, Bennett, & Hurdle, 2005). …”