P499. Early Potential Indicators of Psychosis Risk in the Adolescent Brain Cognitive Development Study

The Psychosis Questionnaire Brief (PQ-BC) is a 21-item survey, deployed as part of the ongoing Adolescent Brain Cognitive Development (ABCD) Study, and is administered alongside the Child Behavior Checklist (CBCL). We determined which PQ-BC questions track cross-sectionally with CBCL psychopathology, at Baseline (ages 9-10) and Year 2 (ages 11-12) follow-up.