The Timeline Followback (TLFB) is a method that can be used as a clinical and research tool to obtain a variety of quantitative estimates of marijuana, cigarette, and other drug use. The TLFB can be administered by an interviewer, self-administered, or administered by computer. It involves asking clients to retrospectively estimate their drug, marijuana or cigarette use 7 days to 2 years prior to the interview date.See more
This assessment has been evaluated across several populations (e.g., adolescents, adults, alcohol abusers of varying severity, college students, male and female normal drinkers in the general population). The number of days drinking assessed varies from 30 to 360 days. Also, this assessment can be completed on the computer, by an interviewer, or by pencil-and-paper. Because of the variation of days, it takes about 10 to 30 minutes to complete.
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