MAST Assessment: The Michigan Alcohol Screening Test (25 ... Nov 11, 2022 · The MAST screening tool is a 25-question test that is used to help identify an alcohol dependency. MAST stands for The Michigan Alcohol Screening Test. There are also shortened, and modified versions published over time including the Brief MAST, SMAST, and Mm-MAST. Questions included in MAST may be related to: risks associated with drinking patterns, neglect of responsibilities, loss of control, and other topics.