Psychotic disorders (including schizophrenia), a severe form of mental illness, typically emerge in adolescence and early adulthood. Early detection and intervention is key to prevention and improved outcome. Its success depends on a widespread awareness of the early signs and symptoms of psychosis among the community. This workshop aims to provide health/mental health professionals and clinical researchers who work with young people with hands-on skills to assess and diagnose Clinical High Risk (CHR) syndromes and early psychosis. This workshop will be taught by Jason Schiffman, PhD, University of Maryland, Baltimore County. Dr. Schiffman is an experienced researcher and trainer of the Structured Interview of Psychosis-risk Syndromes (SIPS)—a validated and most used diagnostic instrument of CHR throughout the world. The goals of this workshop are for participants to become familiar with the general signs and symptoms of people at CHR, to become familiar with the SIPS diagnostic and symptom severity measures, and to be able to rate reliably a SIPS interview. Participants will become certified users of the SIPS upon successful completion of the training requirements in the workshop, including being able to accurately rate a video.