Deacon RM, Mammen K, Bruno R, et al. - Among alcohol and opioid treatment groups, this study was undertaken to investigate the Australian Treatment Outcomes Profile for concurrent validity, inter‐rater, and test‐retest reliability. Researchers included 278 participants recruited from 2016‐2018 to test for concurrent validity and inter‐rater reliability. They further recruited 94 participants to analyze test‐retest reliability. The results of this study indicate that in alcohol and other drug treatment settings, Australian Treatment Outcomes Profile is a validated and reliable tool for evaluating recent substance use and clinical risk, health, and welfare among alcohol and opioid clients. According to the findings, its ability to measure complex constructs, such as psychological and physical health, reliably against longer scales makes it suitable for use in routine clinical care, enabling regular monitoring of patient outcomes and safety parameters.