Background
The Hamilton Anxiety Rating Scale (HAM-A) is a clinician-rated psychological assessment used to measure the severity of anxiety symptoms.
The assessment looks at emotional anxiety, physical tension, fears, sleep problems, concentration difficulties, depressed mood, and physical symptoms related to anxiety.
The HAM-A was developed by Max Hamilton and is one of the most widely used anxiety rating scales in clinical and research settings.
The questionnaire recognizes that anxiety affects both emotional and physical functioning, including mood, sleep, concentration, muscles, breathing, digestion, and autonomic nervous system activity.
Higher scores may suggest stronger anxiety symptoms, physical tension, emotional distress, or significant anxiety-related impairment.