Use the GAD-7 for a brief measure of generalized anxiety and worry. Use the Beck Anxiety Inventory (BAI) when physical and panic-related symptoms are the assessment question. The GAD-7 rates 7 symptoms over two weeks for a total of 0 to 21. The BAI rates 21 symptoms over the past week or month, depending on the version, for a total of 0 to 63.
How do the BAI and GAD-7 differ?
The two questionnaires overlap, but they were developed for different purposes and are not interchangeable forms.
| Feature | GAD-7 | BAI |
|---|---|---|
| Main emphasis | Generalized anxiety symptoms, including worry and difficulty relaxing | Subjective, physical, and panic-related anxiety symptoms |
| Recall period | Past two weeks | Past week or past month, by version |
| Scored responses | 7 ratings from 0 to 3 | 21 ratings from 0 to 3 |
| Total | 0 to 21 | 0 to 63 |
| Common bands | 0-4, 5-9, 10-14, 15-21 | 0-7, 8-15, 16-25, 26-63 |
| Direct suicide or self-harm item | No | No |
| Survey Doctor support | Native administration and score-only manual entry | Information page only; not administered |
The GAD-7 was developed as a brief self-report measure of probable generalized anxiety disorder in adult primary care. In Spitzer et al. (2006), 2,740 adults completed the questionnaire and 965 received an independent interview. A score of 10 had 89% sensitivity and 82% specificity in that criterion sample. Those estimates are not universal, because setting, population, language, and reference assessment can all change screening performance.
Beck and colleagues introduced the BAI in a 1988 study of psychiatric outpatients. The current Pearson record describes its 21 ratings as subjective, physical, or panic-related anxiety symptoms. The difference from the GAD-7 is one of emphasis, not a clean split between mind and body.
Can you compare BAI and GAD-7 scores?
Never compare the raw totals directly. Both are straight sums, but on different scales. A GAD-7 score of 12 and a BAI score of 12 do not represent the same symptom amount, band, or timeframe. Interpret each total on its own scale, and treat both as severity descriptions: neither score diagnoses an anxiety disorder.
The four GAD-7 bands describe symptom frequency during the past two weeks. A total of 10 can support further assessment, but it does not confirm generalized anxiety disorder or rule out another anxiety presentation. What your GAD-7 score means explains each band in plain language.
The NINDS Common Data Elements record lists the four common BAI bands shown in the table above. The BAI score guide explains what each range means. A score of 16 or more is sometimes used as a screening boundary. At that boundary, a Cochrane review by Eck and colleagues (2025) found 54% sensitivity and 87% specificity for any anxiety disorder. The included studies differed substantially, so do not use 16 as a universal rule-in or rule-out threshold.
Why can physical symptoms raise a BAI score?
The BAI's physical-symptom emphasis can be useful when the assessment question includes panic-related or bodily experiences. The same emphasis means a BAI total needs medical context. The NINDS record notes that physical symptoms can raise BAI totals in people with medical conditions. Illness, medication effects, sleep problems, and substance effects can resemble or add to anxiety symptoms, and a high total cannot establish which cause is responsible.
The GAD-7 is not immune to clinical overlap. Its result also cannot separate an anxiety disorder from stress, trauma reactions, depression, a medical condition, medication, or substance effects. New or concerning physical symptoms need appropriate medical assessment regardless of either score.
What if the BAI and GAD-7 disagree?
Different totals may reflect the measures' symptom emphasis, timeframes, response patterns, health context, or ordinary measurement variation. A split result, high on one and low on the other, does not by itself establish panic disorder, generalized anxiety disorder, or a treatment target. Do not infer a treatment response from the disagreement either. Review the answers, functioning, medical history, medications, substance use, stressors, and clinical interview to explain the gap. When repeating a measure, keep the form, timeframe, and administration conditions consistent.
Neither questionnaire contains a direct suicide or self-harm item. Use a separate safety assessment whenever history or presentation raises concern.
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When should you use the BAI instead of the GAD-7?
Use the BAI only when its broader physical and panic-related emphasis serves a defined assessment purpose and medical causes are considered. Use the GAD-7 when the workflow needs a brief generalized-anxiety total, four supported bands, and repeated measurement on the same form. Survey Doctor administers the GAD-7 natively and requires all seven answers.
Survey Doctor does not administer the BAI, so a provider using it must follow the publisher's current administration and scoring materials. For patient-facing context on anxiety symptoms, share do I have anxiety?. Whichever measure you choose, define the population, purpose, follow-up path, and result reviewer before the first administration.