Generalized Anxiety Disorder-7 Scale
Also known as: GAD-7, anxiety screening
The Generalized Anxiety Disorder-7 (GAD-7) is a brief, 7-item self-report instrument for screening and assessing the severity of anxiety symptoms in primary care and mental health settings. Developed by Spitzer and colleagues in 2006, the GAD-7 mirrors the structure and validation approach of the widely successful PHQ-9 depression screen and has rapidly become a standard anxiety assessment tool.
Read the full method
Sign in with a free account to read this section.
Method map
The neighbourhood of related methods — select a node to explore.
When to use it
The GAD-7 is appropriate for anxiety screening in primary care, mental health clinics, and research settings. It is especially useful for rapid assessment of anxiety severity, monitoring treatment response, and identifying patients requiring more intensive evaluation. The tool is less reliable in severe cognitive impairment, non-English speakers, and complex anxiety presentations.
Strengths & limitations
- Brief administration (2–3 minutes) suitable for busy clinical settings
- Strong validity with sensitivity and specificity approximately 89% and 84% for generalized anxiety disorder
- Excellent reliability with Cronbach's alpha > 0.90 and test-retest reliability r > 0.80
- Directly parallels DSM-5 diagnostic criteria, enabling conceptual clarity
- Paired with PHQ-9, enables simultaneous assessment of anxiety and depression in integrated healthcare
- Self-report format vulnerable to response bias, insight limitations, and social desirability
- Does not distinguish between types of anxiety disorders (generalized anxiety, panic, social anxiety, etc.)
- Not a diagnostic instrument; screen-positive scores require clinical confirmation
- Elevated scores do not distinguish anxiety from other conditions with overlapping symptoms (depression, trauma, medical illness)
- Some somatic items may reflect medical conditions unrelated to anxiety
Frequently asked
What GAD-7 score indicates generalized anxiety disorder?
Typical interpretation: 0–4 (normal), 5–9 (mild), 10–14 (moderate), 15–21 (severe). Scores 10 and above are often used as a screening threshold for generalized anxiety disorder.
Can the GAD-7 identify specific types of anxiety (social, panic, phobia)?
No. The GAD-7 screens for generalized anxiety disorder symptoms and does not differentiate between anxiety disorder subtypes. Patients with social anxiety, panic, or specific phobias may score high.
How is the GAD-7 related to the PHQ-9?
Both were developed by the same team using similar methodology. They have parallel structure and validation, enabling simultaneous assessment of anxiety and depression in integrated healthcare settings.
Is the GAD-7 appropriate for children and adolescents?
The original GAD-7 was validated in adults. Pediatric versions and adaptations exist, but careful assessment of developmental appropriateness is recommended for youth.
Sources
- Spitzer, R. L., Kroenke, K., Williams, J. B. W., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: The GAD-7. Archives of Internal Medicine, 166(10), 1092–1097. DOI: 10.1001/archinte.166.10.1092 ↗
- Swinson, R. P. (2006). The GAD-7 scale was accurate for diagnosing generalized anxiety disorder. Evidence-Based Medicine, 11(6), 184. DOI: 10.1136/ebm.11.6.184 ↗
How to cite this page
ScholarGate. (2026, June 3). Generalized Anxiety Disorder-7 Scale. ScholarGate. https://scholargate.app/en/clinical-psychology/generalized-anxiety-disorder-7
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Beck Depression InventoryClinical Psychology↔ compare
- PHQ-9 Depression ScreeningClinical Psychology↔ compare
- Structured Clinical Interview for DSMClinical Psychology↔ compare