Abbreviations	Definitions
CHR-P	Clinical High Risk for Psychosis
ADOS-2	Autism Diagnostic Observation Schedule, 2nd Edition
ADI-R	Autism Diagnostic Interview, Revised
SIPS/SOPS	Structured Interview for Psychosis Risk Syndromes/Scale for the Assessment of Prodromal Symptoms
SPI-CY	Schizophrenia Proneness Instrument—Child and Youth version
UHR	Ultra High Risk
APS	Attenuated Psychotic Symptoms
BLIPS	Brief Limited Intermittent Psychotic Symptoms
GRDS	Genetic Risk and Deterioration Syndrome
CAARMS	Comprehensive Assessment of at Risk Mental States
COPER/COGDIS	Cognitive/Perceptive Basic Symptoms/Cognitive Disturbances
DSM-5	Diagnostic and Statistical Manual of Mental Disorders, 5th edition
IQ	Intelligence Quotient
WISC-IV	Wechsler Intelligence Scale for Children, 4th edition
WAIS-IV	Wechsler Adult Intelligence Scale, 4th edition
K-SADS-PL	Kiddie-Schedule for Affective Disorders and Schizophrenia, Present and Lifetime Version
CSS	Calibrated Severity Score
SA	Social Affect
RRB	Restrictive and Repetitive Behaviors
GAF	Global Assessment of Functioning
ABAS-II	Adaptive Behavior Assessment System, 2nd edition