Figure 3 .
Dual decision threshold (pt) as the function of relative involvement of systems I and II in dual process model of medical decision making: a) objective data show very high benefit/harms ratio (BII> > HII), b) moderately high benefit/harms ratio (BII > HII), c) BII = HII, d) BII < HII. The intercept at y axis threshold probability. The graph shows how the threshold is affected by the extent of system I involvement (γ) and whether system I perceives that benefits is greater than harms [by 5% in this example](red lines, circles) or that harms outweigh benefits[by 5%] (blue line, squares). Decision-maker accepts treatment if the probability of disease exceeds the threshold; otherwise, treatment would not be acceptable (see text for details).
Djulbegovic et al. BMC Medical Informatics and Decision Making 2012 12:94 doi:10.1186/1472-6947-12-94