The Early Psychosis Screener (EPS): Item development and qualitative validation

A panel of experts assembled and analyzed a comprehensive item bank from which a highly sensitive and specific early psychosis screener could be developed. Twenty well-established assessments relating to the prodromal stage, early psychosis, and psychosis were identified. Using DSM-5 criteria, we identified the core concepts represented by each of the items in each of the assessments. These granular core concepts were converted into a uniform set of 490 self-report items using a Likert scale and a ‘past 30days’ time frame.

Source: Schizophrenia Research - December 15, 2017 Category: Psychiatry Authors: B.B. Brodey, J. Addington, M.B. First, D.O. Perkins, S.W. Woods, E.F. Walker, B. Walsh, J.M. Nieri, M.B. Nunn, J. Putz, I.S. Brodey Source Type: research