Figure 1From: Screening of cannabis-related problems among youth: the CPQ-A-S and CAST questionnairesROC curves for the CAST and CPQ-A-S instruments. The figure shows the ROC curve with Specificity and Sensitivity of the Cannabis Abuse Screening Test (CAST) and the Cannabis Problems Questionnaire for Adolescents - Short Form (CPQ-A-S) to detect Cannabis Dependence, as assessed by DSM-IV-TR.Back to article page