Ellman, Lauren M.Schiffman, JasonMittal, Vijay A.2020-10-062020-10-062020-08-20Lauren M. Ellman, Jason Schiffman and Vijay A. Mittal, Community Psychosis Risk Screening: An Instrument Development Investigation, J Psychiatry Brain Sci. 2020;5:e200019. https://doi.org/10.20900/jpbs.20200019https://doi.org/10.20900/jpbs.20200019http://hdl.handle.net/11603/19730Schizophrenia and other psychotic disorders are serious psychiatric disorders that are associated with substantial societal, family, and individual costs/distress. Evidence suggests that early intervention can improve prognostic outcomes; therefore, it is essential to accurately identify those at risk for psychosis before full psychotic symptoms emerge. The purpose of our study is to develop a brief, valid screening questionnaire to identify individuals at risk for psychosis in non-clinical populations across 3 large, community catchment areas with diverse populations. This is a needed study, as the current screening tools for at-risk psychotic populations in the US have been validated only in clinical and/or treatment seeking samples, which are not likely to generalize beyond these specialized settings. The specific aims are as follows: (1) to determine norms and prevalence rates of attenuated positive psychotic symptoms across 3 diverse, community catchment areas and (2) to develop a screening questionnaire, inclusive of both symptom-based and risk factor-based questions. Our study will develop an essential screening tool that will identify which individuals have the greatest need of follow-up with structured interviews in both research and clinical settings. Our study has the potential for major contributions to the early detection and prevention of psychotic disorders.39 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Attribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Text