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Research Instrument
Substance Use // CAGE Open Access

CAGE Questionnaire

4-item screening tool for potential problem drinking (Cut down, Annoyed, Guilty, Eye-opener).

Estimated Time
~5 mins
Instrument Scale
Standardized Items
Administration
Self-Administered
Scoring Engine
Automated Real-Time

Scale Overview & Construct

4-item screening tool for potential problem drinking (Cut down, Annoyed, Guilty, Eye-opener).

Psychometric Instrument Likert Self-Report Dimensional Breakdown Server-Side Validated

Purpose & Measurement Objectives

4-item screening tool for potential problem drinking (Cut down, Annoyed, Guilty, Eye-opener). Based on your answers to its 4 items, you'll get a single overall score showing how strongly this pattern applies to you right now. Your result gives you a clearer, more specific picture of this pattern in your own life, in your own words rather than a guess.

Instrument Specifications

Target Population
Adults
Administration Format
Self-Administered
Intended Domain / Purpose
Research & Empirical Study
Recommended Age Bracket
18+
Duration & Pacing
5 Minutes (Self-Paced)
Access License
Open Creative Commons

Scientific Documentation & Psychometric Rigor

Developer / Author
Ewing, J. A.
Development Year
1984
Theoretical Construct & Framework 4-item screening questionnaire for problem drinking (Cut down, Annoyed, Guilty, Eye-opener).

Internal Consistency & Reliability

Widely replicated screening performance across decades of clinical use.

Construct & Criterion Validity

Validated against clinical diagnoses of alcoholism; one of the oldest and most widely used brief alcohol-screening tools.

Academic Citations

Ewing, J. A. (1984). Detecting alcoholism: The CAGE questionnaire. JAMA, 252(14), 1905-1907.

Academic Citation & Instrument Provenance

When referencing this instrument in research, academic theses, or clinical institutional audits, please cite the original author publication:

License: CC BY 4.0 (original scale Public Domain). Citation: Ewing (1984), JAMA, 252(14), 1905-1907. This is not a diagnostic tool.

Governance, Boundaries & Ethical Use

Construct Boundaries & Interpretive Limitations

Imported from the OpenScales open item-bank project. This specific digital implementation has not been independently clinically validated by PsiQ — scores are for self-reflection and educational purposes only, and are not a diagnosis.

License: CC BY 4.0 (original scale Public Domain). Citation: Ewing (1984), JAMA, 252(14), 1905-1907. This is not a diagnostic tool.

Free
Open Psychometric Access
OPEN ACCESS
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  • Immediate server-side scoring and dimensional profile
  • Official downloadable diagnostic PDF report
  • Zero ads • Anonymous & encrypted response storage
  • Research Instrument psychometric calibration
Identifier CAGE
Category Substance Use
Scale Standard Standardized
License Status CC BY 4.0 Open Scale
PsiQ Psychometric ID #128
CAGE Questionnaire
Free Open Access
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