The mood and psychosis disorders sections of the Structured Clinical Interview for DSM Disorders Research Edition (SCID-IP Modules A-D) were administered to each participant by two of the authors (C.A.B. & A.R.B.) or a trained research assistant. In addition, BP also completed the Young Mania Rating Scale (YMRS) and the Montgomery-Asberg Depression Rating Scale (MADRS), whereas the SZ completed the Positive and Negative Syndrome Scale (PANSS). Diagnoses were made on the basis of the structured interviews in conjunction with medical records.
