This document provides definitions and questions for conducting the Child and Adolescent Psychiatric Assessment (CAPA) interview. The CAPA is a structured psychiatric interview that collects information on demographic factors, family relationships, medical history, functioning, and symptoms of mental disorders in children and adolescents. It includes sections on the child's presenting problems, family history, developmental history, social functioning, somatic symptoms, thought and perceptual abnormalities, mood, anxiety, disruptive behavior, substance use, and mania. The goal of the CAPA interview is to obtain a comprehensive psychiatric history to aid in diagnosis.