“…Nineteen studies (Buckley and Gordon, 2011;Cooper et al, 2013;Crofts et al, 2006;Crofts et al, 2007;Featherstone et al, 2005;Gordon and Buckley, 2009;Hart et al, 2014;Harvey et al, 2014;Kelly et al, 2013;Kinsman et al, 2012;Lewis, 2011;Liaw et al, 2011;Liaw et al, 2013;Lindsey and Jenkins, 2013;Ludikhuize et al, 2011;Sittner et al, 2009;Smith and Poplett, 2004;Straka et al, 2012;Wehbe-Janek et al, 2012) measured the intervention's impact on perceived or real knowledge or performance, nine (Cooper et al, 2013;Featherstone et al, 2005;Gordon and Buckley, 2009;Hart et al, 2014;Harvey et al, 2014;Kelly et al, 2013;Lewis, 2011;Liaw et al, 2011;Wehbe-Janek et al, 2012) measured human factors or non-technical skills such as confidence, teamwork, leadership and communication, while one study measured the situational awareness of a team leader in a simulated patient deterioration scenario (Cooper et al, 2013). Only two of the studies (Crofts et al, 2007;Sittner et al, 2009) measured retention of skills or knowledge.…”