Measurement
APSS: Adolescent Psychotic-Like Symptom Screener
Reference and/or access link:
Kelleher I, Harley M, Murtagh A, Cannon M (2009). Are screening instruments valid for psychotic-like experiences? A validation study of screening questions for psychotic-like experiences using in-depth clinical interview. Schizophrenia Bulletin. doi:10.1093/schbul/sbp057