We administered the CAGE, the Short MAST, and the AUDIT to 832 clients at drinking driver treatment programs in Southern California. Correlations among the alcohol screening measures ranged from 0.62 (CAGE and AUDIT) to 0.70 (CAGE and Short MAST). As expected, response time for the CAGE was quicker than for the Short MAST and the AUDIT, but the internal consistency reliability of the CAGE was the lowest and the standard error of measurement largest. Moreover, greater support was found for the relative validity of the Short MAST and AUDIT than the CAGE. The CAGE provides a substantial amount of information quickly, but more reliable and valid information can be obtained with the short MAST or AUDIT measures, which require an additional 1-2 min to administer.
This report is part of the RAND Corporation External publication series. Many RAND studies are published in peer-reviewed scholarly journals, as chapters in commercial books, or as documents published by other organizations.
Our mission to help improve policy and decisionmaking through research and analysis is enabled through our core values of quality and objectivity and our unwavering commitment to the highest level of integrity and ethical behavior. To help ensure our research and analysis are rigorous, objective, and nonpartisan, we subject our research publications to a robust and exacting quality-assurance process; avoid both the appearance and reality of financial and other conflicts of interest through staff training, project screening, and a policy of mandatory disclosure; and pursue transparency in our research engagements through our commitment to the open publication of our research findings and recommendations, disclosure of the source of funding of published research, and policies to ensure intellectual independence. For more information, visit www.rand.org/about/principles.
The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.