||The Children’s Depression Inventory – 2nd edition (CDI-2) is a complete revision of the Children’s Depression Inventory (CDI). It can be used in both educational and clinical settings to evaluate depressive symptoms in children and adolescents. The CDI 2 includes new items that focus on the core aspects of childhood depression, revised scales and new norms. The CDI 2 is a comprehensive multi-rater assessment of depressive symptoms in youth aged 7 to 17 years. When results from the CDI 2 are combined with other sources of verified information, it can aid in the early identification of depressive symptoms, the diagnosis of depression and related disorders as well as the monitoring of treatment effectiveness. The CDI 2 quantifies depressive symptomatology using reports from children/adolescents (full-length and short), teachers, and parents (or alternative caregivers).