HAM-A
Hamilton Anxiety Rating Scale (HAM-A)
The Hamilton Anxiety Rating Scale (HAM-A) is a semi-structured interview used to assess the severity of anxiety in adult patients. It is mainly administered by a clinician and makes it possible to differentiate between the psychic and somatic symptoms of anxiety. It is used in clinical follow-up as well as in research to evaluate the effectiveness of therapeutic interventions.
- Number of questions
- 14 questions
- Estimated duration
- 20 minutes
- Language
- English
- Original name
- Hamilton Anxiety Rating Scale
- Target audience
- Adults
- Authors
- Max Hamilton (1959)
- Category
- Anxiety
Scoring & interpretation
Each of the 14 items is rated from 0 (not present) to 4 (very severe), giving a total score between 0 and 56. A score of 14 to 17 indicates mild anxiety, 18 to 24 moderate anxiety, and 25 to 30 severe anxiety. Interpretation must be clinical and individualized.
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Clinical relevance
—Does the test measure what it's meant to measure, and is it useful in a clinical setting?
Perceived reliability of the results
—Do the results seem reliable and consistent in their interpretation?
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