Scales Peterson Problem Checklist (PPC) The Peterson Problem Checklist (PPC), developed by Donald R. Peterson in 1961, is an empirical... September 28, 2026 • memjavad
Scales Early Psychotic Symptoms Screening Scale (EPSy) The Early Psychotic Symptoms Screening Scale (EPSy), developed in 2023 by Babinet, Demily, and Michael,... September 27, 2026 • memjavad