Table 2 also includes the discrimination and severity parameter estimates for a model with the addition of the craving criterion (Model 2). Neither the magnitude of parameter estimates nor the rank order of DSM-IV criteria in terms of discrimination and severity substantially changed when craving was added to the model. Craving fell along a mid- to high-end of severity and discrimination (severity: 2.59 [SE=0.0]; discrimination: 1.98 [SE=0.1]). The BIC, sample size-adjusted BIC, and AIC indicated that a model including craving had substantially better fit to the data, compared to the model including DSM-IV criteria only (See Table 4).
