Clinical instrument

Cannabis Use Disorder Identification Test, Revised (CUDIT-R)

An 8-item self-report screen for hazardous cannabis use and cannabis use disorder over the past six months. Intended for use under clinician supervision.

You learn whether your cannabis use shows signs of becoming a problem.

For anyone who uses cannabis and wants a clear picture of whether it is causing trouble.

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Report and PDF $4, paid after you finish.

Your answers stay private.

It comes from addiction research on identifying problematic cannabis use.

Sample result, example data. Illustrative chart with invented scores; it does not describe any real respondent.

Cannabis Use Disorder Identification Test, Revised (CUDIT-R) box

What this test is

Welcome. An 8-item self-report screen for hazardous cannabis use and cannabis use disorder over the past six months. Intended for use under clinician supervision.

The measure

The Cannabis Use Disorder Identification Test, Revised (CUDIT-R) was developed by Adamson and colleagues (2010). It has 8 items, each answered on a 5-point (Never … Daily or almost daily) scale.

Adamson, S. J., Kay-Lambkin, F. J., Baker, A. L., Lewin, T. J., Thornton, L., Kelly, B. J., & Sellman, J. D. (2010). An improved brief measure of cannabis misuse: The Cannabis Use Disorders Identification Test — Revised (CUDIT-R). Drug and Alcohol Dependence, 110(1–2), 137–143. Public-domain instrument, free to use with appropriate citation.

At a glance

Items

Response scale

5-point (Never … Daily or almost daily)

Est. time

~1 min

Access

Free to take · Full report and PDF for $4, or $2 to repeat

What it measures

Eight questions ask about cannabis use over the past six months: how often it was used, how many hours a person was stoned on a typical occasion, how often they were unable to stop once started, failed to do what was expected, spent a great deal of time getting, using or recovering, had problems with memory or concentration, used in situations that could be physically hazardous, and whether they had ever thought about cutting down. Together the items cover frequency, loss of control, consequences and concern.

Adamson and Sellman (2003) adapted the approach of the Alcohol Use Disorders Identification Test (AUDIT) to cannabis, and Adamson and colleagues (2010) later revised the measure into its current eight-item form, keeping the items that best identified problematic use.

The eight ratings are summed into a total. Lower totals indicate infrequent or low-risk use; higher totals indicate use that is more frequent, harder to control and more often associated with problems. The report places the total within the published screening ranges. It is a screen for problematic use, not a diagnosis.

The test is used in primary care, youth services and addiction services, and in research on cannabis use. On this site, the AUDIT screens for alcohol problems in the same format, and the Drug Abuse Screening Test (DAST-10) covers drug use more broadly.

Nomological network

The revised Cannabis Use Disorders Identification Test covers consumption, problems, dependence and psychological features of cannabis use, and its scores converge with diagnostic interviews for cannabis use disorder (Adamson et al., 2010).

It was adapted from the alcohol identification test and is specific to cannabis, so it is related to, but distinct from, broader drug and alcohol screens (Adamson et al., 2010).

Example item

“How often do you use cannabis?”

NeverMonthly or less2-4 times a month2-3 times a week4 or more times a week

Illustrative only. During administration items are presented one screen-set at a time; response-key direction is never shown to respondents.

Scoring & interpretation

Item responses are summed to a total score and compared against published screening cutoffs.

The report explains which published screening bands your score falls in and what they mean.

References

Adamson, S. J., Kay-Lambkin, F. J., Baker, A. L., Lewin, T. J., Thornton, L., Kelly, B. J., & Sellman, J. D. (2010). An improved brief measure of cannabis misuse: The Cannabis Use Disorders Identification Test — Revised (CUDIT-R). Drug and Alcohol Dependence, 110(1–2), 137–143.

Sample report preview

The report shows your total score and where it falls across the range of possible scores, followed by a plain-language explanation of what scores in that region describe. Where the instrument has published interpretive bands, the report names the band and what it means. It closes with notes on how to read the result and on when a conversation with a qualified professional may be useful.

Report contents
Section	What it shows
Score	Your scale score, computed with the published scoring key.
Score bands	Where your score falls among the published bands listed on this page.

It is free to take, and the full report with a downloadable copy is $4.

How would you like to use it?

For yourself

Take it yourself and receive a written score report you can download as a PDF. When you are signed in, your results are saved so you can retake it later and follow how your scores change over time.

$4 for your first report, and $2 for each retake

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