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Cannabis Use Disorders Identification Test-Revised

Cannabis Use Disorders Identification Test-Revised

What is CUDIT-R

The Cannabis Use Identification Test-Revised (CUDIT-R) is a brief cannabis misuse-screening tool, which is widely used to identify cannabis use problems. When a cannabis misuse screening tool, the CUDIT, was originally published it was noted that although it performed well there was concern about individual items. A revised CUDIT-R was developed containing 8 items, two each from the domains of consumption, cannabis problems (abuse), dependence, and psychological features. Although the psychometric adequacy of the original CUDIT was confirmed, the CUDIT-R was shorter and had equivalent or superior psychometric properties. High sensitivity (91%) and specificity (90%) were achieved.

CUDIT-R Printable PDF

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CUDIT-R Scoring and Interpretation

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Domain

Substance Use, Cannabis Use

What does CUDIT-R measure

The purpose of the evaluation is to:

  • screen for cannabis misuse,
  • assess cannabis use disorder severity, and
  • measure outcomes.

Administration

Self-administered

Type of outcome tool

Clinical

Assessment modes

Questionnaire

Age and eligibility

Adolescents, Adults

Estimated time

2 to 4 minutes

Notes

Since the questionnaire relies on client self-report, all responses should be verified by the clinician, and a definitive diagnosis is made on clinical grounds taking into account how well the client understood the questionnaire, as well as other relevant information from the client.

Screening tools such as the CUDIT-R should not be used as a substitute for clinical diagnosis. Furthermore, when cannabis use problems are identified using the CUDIT-R this should be followed by further questioning in a clinical interaction that may form the start of the intervention process.

The CUDIT-R has been demonstrated to be valid and reliable screening test, as well as a useful rating scale for cannabis use disorder severity in a co-existing disorder clinical sample, and it is for these uses in broader clinical samples that we believe the CUDIT-R would be of greatest use. As a brief scale with 8 items capturing important features of consumption patterns, cannabis problems (abuse), dependence symptoms, and psychological features, we believe the CUDIT-R also has promise as a brief outcome measure. The original CUDIT has been used and validated in general population samples and it is likely that the CUDIT-R would be similarly effective.

Attribution and References

Adamson, Kay-Lambkin, Baker, Lewin, Thornton, Kelly, and Sellman. (2010). An Improved Brief Measure of Cannabis Misuse: The Cannabis Use Disorders Identification Test – Revised (CUDIT-R). Drug and Alcohol Dependence (In Press).

Simon J. Adamson, Frances J. Kay-Lambkin, Amanda L. Baker, Terry J. Lewin, Louise Thornton, Brian J. Kelly, J. Douglas Sellman, An improved brief measure of cannabis misuse: The Cannabis Use Disorders Identification Test-Revised (CUDIT-R), Drug and Alcohol Dependence, Volume 110, Issues 1–2, 2010, Pages 137-143, ISSN 0376-8716, https://doi.org/10.1016/j.drugalcdep.2010.02.017.
Archived link
Adamson SJ, Sellman JD. A prototype screening instrument for cannabis use disorder: the Cannabis Use Disorders Identification Test (CUDIT) in an alcohol-dependent clinical sample. Drug Alcohol Rev. 2003 Sep;22(3):309-15. doi: 10.1080/0959523031000154454. PMID: 15385225.
Archived link