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Research Instrument Mental Health & Mood // GAD7

Generalized Anxiety Disorder-7

7-item anxiety screening tool measuring symptom severity over the past 2 weeks. Scores range from 0 to 21.

Purpose Details Scientific Documentation Limitations Related

Purpose

Self-report research instrument, reproduced here under an open license for non-diagnostic educational, research, and self-reflection use.

Details

Administration
Self-Administered
Intended Use
Research

Scientific Documentation

Developer / Author
Spitzer, R. L., Kroenke, K., Williams, J. B., & Löwe, B.
Development Year
2006

Theoretical framework: Brief screening and severity measure for generalized anxiety disorder symptoms over the past two weeks.

Reliability: Original validation study reported high internal consistency (Cronbach's alpha = .92).

Validity: Validated against structured psychiatric interviews in primary care samples; one of the most widely used anxiety screening tools internationally.

References: Spitzer, R. L., Kroenke, K., Williams, J. B., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: the GAD-7. Archives of Internal Medicine, 166(10), 1092-1097.

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, research, and educational purposes only, and are not a diagnosis.

License: Pfizer released all PHQ and GAD-7 screeners without copyright restriction (https://www.phqscreeners.com/); this OpenScales digital implementation is licensed CC BY 4.0. Citation: Spitzer, R. L., Kroenke, K., Williams, J. B., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: the GAD-7. Archives of Internal Medicine, 166(10), 1092–1097. https://doi.org/10.1001/archinte.166.10.1092. This is not a diagnostic tool. If you are in crisis or having thoughts of self-harm, please contact a licensed mental health professional or a crisis helpline in your country immediately.

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