The Anxiety Disorders Interview Schedule for DSM-5, Child and Parent Versions, are the gold standard semi-structured interviews used in clinical research and services to assess and diagnose the major mental health conditions affecting children, adolescents and young adults. These interviews cover the range of conditions identified in the Diagnostic and Statistical Manual of Mental Disorders (DSM), while also providing information for careful case formulation in treatment planning and evaluation of outcomes. Evaluators are able to quantify the severity of illness using a Clinician Severity Rating (CSR), as well as level of severity of symptoms and associated avoidance behavior. Decision rules for combining parent and youth reports, examples of CSR levels for the child anxiety triad of separation anxiety disorder, social anxiety disorder, and generalized anxiety disorder are included in the Clinician Guide, as well as detailed information on use of the Autism Supplement. This item includes one Clinician Manual.