Brief treatment (BT) or regular outpatient alcohol use or substance use disorder (SUD) treatment is a key element of the Screening, Brief Intervention, and Referral to Treatment (SBIRT) model. It can be an effective, short-term, and low-cost treatment option for many people who misuse alcohol and drugs. Nevertheless, inconsistent BT implementation often costs similar to regular outpatient care. Prior research is also prevalent with inconsistent operationalizations regarding the measurement of BT received by patients. Therefore, there is a need to more explicitly identify and document...