Fig. 2From: The relationship between the sources of confidence in overcoming COVID-19 and the improvement of medical students' professional identity: mediation by medical students' attention to COVID-19Mediation model of how does the sources of confidence in overcoming COVID-19 influences the improvement of medical students' professional identity via medical students' attention to COVID-19. a = direct effect of X on mediator M; b = direct effect of mediator M on Y; c = total effect of X on Y; c’ = direct effect of X on YBack to article page