GAD-7 anxiety questionnaire
The internationally standard GAD-7 anxiety questionnaire: 7 items covering the last 2 weeks, scored automatically and interpreted against the published thresholds. Free.
Key points
- The GAD-7 has 7 items covering the last 2 weeks, each scored 0 to 3, total 0 to 21.
- A score of 10 is the threshold commonly used to consider generalised anxiety disorder.
- Anxiety and insomnia feed each other: worry about not sleeping is itself the mechanism that keeps insomnia going.
- This is a screening tool. A diagnosis needs a clinical history and physical causes such as thyroid disease ruled out.
- ⚠️ The thresholds below are the INTERNATIONAL ones from the original study. No study has yet derived a GAD-7 cut-off for Vietnamese speakers against a diagnostic interview, so read the result as an indicator rather than a precise boundary.
7 questions still unanswered.
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About the copyright of this questionnaire
The GAD-7 (Generalized Anxiety Disorder-7) was developed by Robert L. Spitzer, Kurt Kroenke, Janet B.W. Williams and Bernd Löwe, funded by Pfizer Inc. Pfizer states that no permission is required to reproduce, translate, display or distribute it.
References
- Generalized Anxiety Disorder 7-item scale (GAD-7) - the original instrument and the statement that no permission is required to use it - Pfizer / PHQ Screeners, 2006
- Diagnostic accuracy of the Generalized Anxiety Disorder 7-item (GAD-7) scale - GAD-7 validation study, 2016