Penn State Worry Questionnaire
Also known as: PSWQ
The Penn State Worry Questionnaire (PSWQ) is a 16-item self-report instrument specifically designed to measure the trait dimension of worry—the tendency to worry excessively across situations. Developed by Meyer, Miller, Metzger, and Borkovec in 1990, the PSWQ has become the standard instrument for assessing worry as a transdiagnostic symptom dimension in clinical and research settings.
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When to use it
The PSWQ is recommended for research and clinical assessment focused on worry as a core feature, particularly in the evaluation of generalized anxiety disorder. It is suitable for adolescents (aged 14 and older) and adults. The PSWQ is particularly useful in studies examining worry processes, in treatment research for anxiety disorders, and in measuring treatment response to worry-targeted interventions (e.g., cognitive-behavioral therapy). It is less appropriate as a general anxiety screen when comprehensive symptom coverage is needed.
Strengths & limitations
- Worry-specific measurement — uniquely focuses on worry and its controllability, capturing a core feature of generalized anxiety disorder more precisely than broad anxiety measures.
- Strong psychometric properties — internal consistency (Cronbach's α ≥ 0.86), good test-retest reliability (r ≥ 0.74), and strong convergent validity with other worry measures.
- Responsive to treatment — demonstrates sensitivity to cognitive-behavioral therapy and other worry-targeted interventions, making it valuable for tracking treatment response.
- Public domain and free — the PSWQ is not copyrighted; it is freely available for clinical and research use without permission or licensing fees.
- Worry-specific, not comprehensive — the PSWQ does not assess somatic anxiety symptoms (e.g., heart palpitations, trembling), limiting its utility when comprehensive anxiety assessment is needed.
- Does not diagnose generalized anxiety disorder — like all self-report measures, elevated PSWQ scores indicate worry but do not diagnose GAD, which requires a clinical interview.
- Sensitivity to content versus process — the PSWQ measures the trait dimension of worry but does not capture what individuals worry about (worry content), which can be clinically important.
Frequently asked
What is the optimal cutoff score for the PSWQ?
A cutoff of 45 is most commonly used in clinical research and practice. Some studies use 52 or 56 for higher specificity (fewer false positives). Select a cutoff based on your setting: 45 for general screening, 52 for more stringent clinical assessment. Always report which cutoff you use.
Is the PSWQ free to use?
Yes. The PSWQ is in the public domain and free for clinical and research use without permission or license. Unlike the BAI or STAI, it is not copyrighted and can be freely downloaded and administered.
How is the PSWQ different from the GAD-7?
The PSWQ focuses specifically on worry and its uncontrollability, measuring a single construct. The GAD-7 measures overall generalized anxiety disorder symptoms, including worry, nervousness, irritability, and sleep problems. Use PSWQ for worry-focused research; use GAD-7 for rapid general anxiety screening.
Can I use the PSWQ to diagnose generalized anxiety disorder?
No. The PSWQ measures worry severity but does not diagnose GAD. Diagnosis requires a clinical interview confirming that worry is present most days for 6+ months, is difficult to control, and causes functional impairment. Use PSWQ as one component of a comprehensive diagnostic assessment.
Sources
- Meyer, T. J., Miller, M. L., Metzger, R. L., & Borkovec, T. D. (1990). Development and validation of the Penn State Worry Questionnaire. Behaviour Research and Therapy, 28(6), 487-495. DOI: 10.1016/0005-7967(90)90135-6 ↗
How to cite this page
ScholarGate. (2026, June 3). Penn State Worry Questionnaire. ScholarGate. https://scholargate.app/en/clinical-psychology/penn-state-worry-questionnaire
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.
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- Generalized Anxiety Disorder-7Clinical Psychology↔ compare
- State-Trait Anxiety InventoryClinical Psychology↔ compare