Description: The HAM-A was one of the first rating scales developed to measure the severity of anxiety symptoms, and is still widely used today in both clinical and research settings.

The scale consists of 14 items, each defined by a series of symptoms, and measures both psychic anxiety (mental agitation and psychological distress) and somatic anxiety (physical complaints related to anxiety).

Purpose: Measures Anxiety symptoms

Format: PDF

Permissions: It is in public domain (To be used by trained Clinicians only)

Reference: Hamilton, M. (1959). The assessment of anxiety states by rating. British Journal of Medical Psychology, 32, 50–55. https://doi.org/10.1111/j.2044-8341.1959.tb00467.x