The Drug Abuse Screening Test (DAST) was designed to provide a brief, self-report instrument for population screening, clinical case finding and treatment evaluation research. The DAST yields a quantitative index of the degree of consequences related to drug abuse. This instrument takes approximately 5 minutes to administer and may be given in either a self-report or interview format. The DAST may be used in a variety of settings to provide a quick index of drug abuse problems.