A comprehensive battery was administered that included the adult Semi-Structured Assessment for the Genetics of Alcoholism (SSAGA) or the age-appropriate adolescent SSAGA (cSSAGA-A) and parent version (cSSAGA-P), if participants were under age 18 (Bucholz et al., 1994). The SSAGA and cSSAGA-A covered substance use problems as well as other psychiatric disorders, including PTSD. A brain function battery was administered at each assessment, which included neuropsychological tasks and neurophysiological measures during resting state (EEG coherence, EEGc) (Meyers et al., 2023). All procedures were reviewed and approved by the Institutional Review Board at each of six collection sites and informed consent was obtained at each stage of data collection.
